藏傳佛教宇宙觀
Tibetan Buddhist Cosmology
The Wheel of Life, Three Bardos, and Mount Meru
六道輪迴 · Six Realms of Samsāra
The Wheel of Life (Bhavachakra) depicts six realms of conditioned existence, each dominated by a primary mental affliction. Held in the claws of Yama (Lord of Death), the wheel turns through desire, hatred, and ignorance. Only the human realm offers the rare conditions for liberation.
| Realm | Primary Emotion | Presiding Buddha |
|---|---|---|
Deva Realm (God Realm) ལྷའི་འགྲོ་བ། · 天道 | Pride and complacency (nga rgyal) | Indra-form Buddha (holding a vīṇā, representing the harmonious balance that cuts through pride and the grasping for permanence) |
Asura Realm (Demi-God Realm) ལྷ་མ་ཡིན་གྱི་འགྲོ་བ། · 阿修羅道 | Jealousy and envy (phrag dog) | Buddha with a flaming sword (representing the wisdom that cuts through jealousy and the illusion of superiority/inferiority) |
Human Realm མིའི་འགྲོ་བ། · 人道 | Desire and craving ('dod chags) | Buddha Śākyamuni (holding a begging bowl and a mendicant's staff — symbols of the renunciation and compassion that transform human desire into the path) |
Animal Realm དུད་འགྲོའི་འགྲོ་བ། · 畜生道 | Ignorance and stupidity (gti mug) | Buddha holding a book (a wisdom text — representing the light of discriminating awareness that dispels the darkness of ignorance) |
Hungry Ghost Realm ཡི་དྭགས་ཀྱི་འགྲོ་བ། · 餓鬼道 | Greed and insatiable craving (ser sna) | Buddha holding a vessel of nectar (amrita) — representing the inexhaustible nourishment of the Dharma that alone can satisfy the fundamental hunger underlying all craving |
Hell Realm དམྱལ་བའི་འགྲོ་བ། · 地獄道 | Hatred and anger (zhe sdang) | Buddha with a purifying flame (representing the wisdom-fire that transforms the burning hatred into the clear light of mirror-like wisdom — the luminous nature that underlies even the most extreme states) |
Deva Realm (God Realm)
ལྷའི་འགྲོ་བ། · 天道 · Deva-gati
Immensely long — measured in cosmic aeons (kalpas). Gods of the Desire Realm live thousands of human years; gods of the Form and Formless Realms live for multiple aeons. Yet all lifespans are finite and end inevitably.
Depicted in the upper-left segment of the Bhavachakra (Wheel of Life); gods reside in palatial realms amid music, dancing, and feasting; a Buddha figure holding a lute appears among them, but they are too absorbed in pleasure to listen
Asura Realm (Demi-God Realm)
ལྷ་མ་ཡིན་གྱི་འགྲོ་བ། · 阿修羅道 · Asura-gati
Very long, though shorter than the deva realm. Asuras exist in semi-divine states of power and conflict, constantly at war with the gods over the wish-fulfilling tree whose roots grow in the asura realm but whose fruits hang in the deva realm.
Depicted in the upper-right or middle-left of the Bhavachakra (varies by tradition); warlike beings in armour fighting the gods, reaching up toward a wish-granting tree they cannot enjoy; a wrathful Buddha figure stands amid the conflict
Human Realm
མིའི་འགྲོ་བ། · 人道 · Manuṣya-gati
Relatively brief — ranging from minutes to over one hundred years in this age. Human lifespan is considered optimally short enough to feel impermanence acutely but long enough to accomplish spiritual practice.
Depicted in the upper-middle or right segment of the Bhavachakra; humans engaged in the full range of worldly activities — birth, work, relationships, illness, death — with a Buddha teaching among them; plowing, building, feasting, and mourning are all shown
Animal Realm
དུད་འགྲོའི་འགྲོ་བ། · 畜生道 · Tiryak-gati
Varies enormously — from insects living hours to elephants and tortoises living over a century. Most animal existences are dominated by the immediate cycle of eating, fleeing predators, and reproducing.
Depicted in the lower-right of the Bhavachakra; animals in their natural habitats — sea creatures, land animals, insects, birds — some hunting, some fleeing, some mating; a Buddha among them holds a luminous text, ignored by the animals absorbed in survival
Hungry Ghost Realm
ཡི་དྭགས་ཀྱི་འགྲོ་བ། · 餓鬼道 · Preta-gati
Extremely long by human measure — up to thousands of human years. Hungry ghosts endure perpetual torment through inability to satisfy their craving. Their suffering intensifies over time as the root cause (miserliness) generates further obscurations.
Depicted in the lower-left of the Bhavachakra; beings with enormous distended stomachs and extremely thin necks — unable to swallow food or drink; some reach for food that bursts into flame before it reaches their mouths; a compassionate Buddha offers a vessel of nectar
Hell Realm
དམྱལ་བའི་འགྲོ་བ། · 地獄道 · Naraka-gati
Incalculably long — the eight hot hells have lifespans measured in enormous cosmic time units (e.g., the lifespan of Avīci, the most intense hell, is said to equal one full cosmic aeon). The eight cold hells also have immense durations. Yet all are finite — exhaustion of the karma that projected the realm eventually ends the experience.
Depicted in the lower-middle of the Bhavachakra; scenes of burning, freezing, dismemberment, and reassembly in fire — beings tormented by infernal guards; Yama the Lord of Death presides with his mirror and scales; a Buddha appears with a transformative flame, calm amid the chaos
三中陰 · Three Bardos
The Bardo Thodöl (བར་དོ་ཐོས་གྲོལ།, ‘Liberation Through Hearing in the Bardo’) describes three transitional states between death and rebirth. Each presents recognition opportunities of increasing subtlety.
Chikhai Bardo (Bardo of Dying)
འཆི་ཁའི་བར་དོ། · 臨終中陰
The Chikhai Bardo is the first of the three bardos, occurring at the precise moment of death when the outer breath ceases and the inner dissolution process is complete. As the four elements dissolve back into one another (earth into water, water into fire, fire into air, air into consciousness), the ordinary mind ceases and the primordial Clear Light of the Dharmakāya — the ground luminosity — arises spontaneously. This is the natural face of one's own awareness: luminous, empty, without centre or boundary.
What Appears
The primordial Clear Light (od gsal) of the Dharmakāya — described as 'the luminous expanse of the Primordial Buddha Samantabhadra.' It arises as vast, open, brilliant space without colour, form, or boundary. For a split second, all beings encounter this state at death, regardless of their level of practice.
Recognition Opportunity
Liberation is immediate and complete if the Clear Light is recognised as one's own nature — the union of awareness (rigpa) and emptiness. The practitioner who has trained in Dzogchen, Mahamudra, or deep samadhi in life will recognise this luminosity without flinching and merge with it. For most beings, however, the habitual tendency to conceptualise causes them to faint and pass beyond this window.
Practice Instruction
The key instruction from the Bardo Thodol: 'O nobly born — now the Clear Light of Reality itself dawns upon you. Recognise it! Your own awareness, vacant, naked, empty — this itself is Reality, the All-Good, the Dharmakāya! Your own awareness is inseparable from the vast expanse of the Dharmata — recognise this! Stay with it! Do not be distracted!' Preparation in life: Dzogchen rigpa recognition, Mahamudra resting in nature of mind, Phowa (consciousness transference) training.
Bardo Thodol (བར་དོ་ཐོས་གྲོལ) — Tibetan Book of the Dead, revealed as Terma by Karma Lingpa (14th century); also the Profound Dharma of Natural Liberation Through Contemplating the Peaceful and Wrathful Deities (Zab chos zhi khro dgongs pa rang grol)
Chönyid Bardo (Bardo of Dharmata / Reality)
ཆོས་ཉིད་ཀྱི་བར་དོ། · 法性中陰
The Chönyid Bardo ('bardo of the nature of reality') is the second intermediate state, arising after the Clear Light has faded and the consciousness begins to experience the spontaneous display of its own nature as visions of deities, light, and sound. This bardo reveals the 42 Peaceful Deities (led by Samantabhadra and Samantabhadrikā in union, radiating the five-coloured lights of the five Buddha families) and the 58 Wrathful Deities (Herukas and Mātrīkās). All of these deities are projections of the awakened nature of the deceased's own mind.
What Appears
Days 1–7 (Peaceful Deities): The five Dhyāni Buddhas appear sequentially — Vairocana (Day 1, white, centre), Akṣobhya (Day 2, blue, east), Ratnasambhava (Day 3, yellow, south), Amitābha (Day 4, red, west), Amoghasiddhi (Day 5, green, north) — each with their consorts, Bodhisattvas, and doorkeepers. Each emanates an intense coloured light of wisdom, accompanied by a softer, seductive light of the corresponding realm (god realm, human realm, etc.). Days 8–14 (Wrathful Deities): The same five families appear in their wrathful Heruka forms — Mahottara Heruka and the others — drinking blood, wearing crowns of skulls, radiating terrifying sounds and intense light.
Recognition Opportunity
Each day offers a specific liberation opportunity: recognise the brilliant, intense wisdom light as your own awareness and merge with it. The soft, seductive coloured lights (leading to samsaric realms) are the projections of the five poisons — do not follow them out of familiarity. If any of the 14 recognition opportunities is grasped, liberation occurs immediately. Recognition of the wrathful deities as one's own primordial energy (in days 8–14) is also liberation.
Practice Instruction
From the Bardo Thodol: 'O nobly born — the brilliant blue light of Vairocana's Dharmadatu wisdom now shines before you. Do not be afraid of it! Do not be attracted to the dull white light of the god realm which also shines before you — that is the path of ego. The brilliant blue light is the natural radiance of your own mind. Recognise it and rest in it!' Key: do not flee the brilliant lights out of fear; do not follow the soft lights out of attraction.
Bardo Thodol (བར་དོ་ཐོས་གྲོལ) — Tibetan Book of the Dead; the complete text lists all 100 deities with their specific mantras, seed syllables, colours, and symbolic attributes to enable recognition
Sipai Bardo (Bardo of Becoming / Rebirth)
སྲིད་པའི་བར་དོ། · 受生中陰
The Sipai Bardo ('bardo of becoming') is the third and final intermediate state — the period in which the 'mental body' (yid lus) of the deceased, driven by karmic winds, wanders in a dreamlike state seeking rebirth. The mental body possesses clairvoyant perception, can travel anywhere instantaneously, and passes through solid objects. It is sustained by smells and carried by the winds of karma. The experience is dominated by fear, confusion, and hallucinations created by past karma — tempests, darkness, pursuers — interspersed with occasional glimpses of clarity.
What Appears
Karmic visions: storms, howling darkness, terrifying sounds ('like thousands of crashing mountains'), red and black lights, and pursuers. Then, as rebirth approaches: visions of the six realms in their characteristic lights and environments — the warm red-orange light of the human realm, the green light of the asura realm, the dull white of the deva realm, the smoky light of the animal realm, the yellow light of the hungry ghost realm, the dark smoky light of the hell realm. The six realm-lights appear as potential womb doors.
Recognition Opportunity
Multiple repeat recognition opportunities occur every 7 days as the mental body experiences a 'mini-death.' At each interval, the Clear Light arises again briefly. Additionally, the choice of rebirth womb can direct the next life toward fortunate realms and practice opportunities — though this requires both recognition and deliberate action.
Practice Instruction
Five methods for blocking unfavourable womb entrances (from the Bardo Thodol): (1) Recognise the pursuing figures as projections of your own mind and feel no fear or attraction; (2) Cultivate loving-kindness toward all beings; (3) Visualise the guru above your crown and make requests; (4) If a womb must be entered, visualise it as a palace of a Dhyāni Buddha or as the pure realm of Amitābha; (5) Choose a womb in a human realm where Dharma is available — look for signs of a future spiritual family, a place where practice will be possible. The ultimate instruction: 'Rest in the recognition that the mental body itself has no inherent existence — it is a dream figure dreaming of rebirth. Recognise the dreamer!'
Bardo Thodol (བར་དོ་ཐོས་གྲོལ) — Tibetan Book of the Dead; also the Liberation in the Bardo Through Wearing (Bardo Tödröl), and the Liberation in the Bardo Through Taste — all part of the same Karma Lingpa Terma cycle
須彌山 · Mount Meru
Mount Meru (Tib: Ri Rab; Ch: 須彌山) is the cosmic axis mundi at the centre of the Buddhist universe, described in the Abhidharmakosha (Treasury of Higher Knowledge) and the Kālacakra Tantra. Its summit is the realm of Indra and the 33 gods (Trayastriṃśa Heaven); its slopes are inhabited by the four great kings (Cāturmahārājika Heaven); its base is surrounded by seven concentric mountain ranges alternating with seven golden seas, and then the outer salt ocean (the world ocean), in which the four continents float. Meru itself is said to be made of four precious substances — gold on the north, silver on the east, lapis lazuli on the south (giving the sky its blue colour as seen from Jambudvīpa), and crystal/ruby on the west. The Milky Way is the light of Mount Meru seen from space. In the Vajrayana, the human body is identified as a microcosmic Mount Meru: the central channel (Suṣumnā/Uma, Tib: dbu ma) is the axis of the inner cosmos, with the chakras as the heaven realms and the navel as Jambudvīpa. The Maṇḍala offering practice (offering the entire universe to the Buddhas) is structured around the Mount Meru cosmology: the central heap of grain represents Meru, with offerings for the four continents and their sub-continents arranged around it.
四大洲 · Four Continents
Rose-Apple Continent (Southern Continent)
Jambudvīpa · 贍部洲 · འཛམ་བུ་གླིང།
Shape: Triangular (like a human face, pointing south — or like a crescent with a pointed base); smaller than the other three continents
Humans of short and variable lifespan (currently around 100 years maximum in our age of decline). Jambudvīpa is our world, named after the Jambu (rose-apple) tree growing on its shore. Though the smallest and most difficult of the four continents — characterised by suffering, uncertainty, and the constant proximity of death — it is uniquely precious: it is the only continent where the full range of suffering creates the motivation for liberation, where Buddhas appear (only Jambudvīpa receives the visits of the thousand Buddhas of this aeon), and where complete enlightenment can be achieved within a single lifetime. The continent is considered to be present-day India and the surrounding world. A giant Jambu tree grows at the continent's centre, and a lake nearby (Anavatapta / Mānasarovar) is the source of the four great rivers of the world.
Eastern Continent of Excellent Body
Pūrvavideha · 東勝神洲 · ལུས་འཕགས་པོ།
Shape: Semicircular (like the half-moon)
Humans of great physical beauty and stable, blissful existence. Their lifespan is fixed at 250 years and is not subject to the violent fluctuations of Jambudvīpa. They enjoy pleasant conditions and do not suffer from the acute pain and urgency of our world. While fortunate, this very pleasantness reduces the motivation for spiritual practice — they are comfortable enough not to feel compelled toward liberation. The body is radiant and the continent itself is luminous.
Western Continent of Cattle Gifts
Aparagodānīya · 西牛賀洲 · བ་ལང་སྤྱོད།
Shape: Round (like the full moon or a circle)
Humans of great wealth and abundance, particularly in cattle (the continent is named for the ox — go — used in trade). Their lifespan is fixed at 500 years and is free from the suffering of poverty and deprivation. The western continent is associated with material prosperity and the element of water. Spiritual practice is possible but not urgent due to the high quality of material life.
Northern Continent of Unpleasant Sound
Uttarakuru · 北俱盧洲 · སྒྲ་མི་སྙན།
Shape: Square (like the full moon seen as a square in some renderings, or simply four-cornered)
Humans with the longest lifespan of all four continents — a fixed 1,000 years — free from disease, poverty, or violent death. Food, clothing, and shelter arise spontaneously from wish-fulfilling trees. No personal property, family structures, or social hierarchies exist — beings live in complete equality and ease. However, this very perfection is the northern continent's great spiritual disadvantage: there is no suffering sufficient to motivate renunciation, no Dharma (Buddhas do not visit Uttarakuru), and no spiritual effort possible. Rebirth here is considered a golden cage — pleasant but spiritually sterile. The Uttarakuru is the Buddhist analogue of paradise that paradoxically represents a dead end in the path to liberation.
☁ Heaven Levels
Above Mount Meru, the heavens ascend in layers: the six Desire Realm heavens (from the Four Great Kings at Meru's base up through Indra's Trayastriṃśa, then Yāma, Tuṣita — where the future Buddha Maitreya awaits — Nirmāṇarati, and Paranirmitavaśavartin); then the 17 Form Realm heavens (dhyāna heavens attained through meditative absorption); and finally the 4 Formless Realm heavens (ārūpyadhātu), which are purely mental states without spatial location. The Formless Realm heavens have the longest lifespans — up to 84,000 great aeons in the highest level (neither-perception-nor-non-perception) — yet even these end, and beings return to samsara.
🔥 Hell Levels
Below Jambudvīpa, the earth descends through layers to the eight great hot hells stacked one below another, with Avīci (無間地獄 — the Hell of Unceasing Torment) at the very bottom. To the sides lie the Neighbouring Hells (16 subsidiary hells surrounding each great hot hell) and the Trifling Hells (scattered in isolated locations). In the horizontal directions lie the eight great cold hells (Arbuda, Nirarbuda, Aṭaṭa, Hahava, Huhuva, Utpala, Padma, Mahāpadma). Together these constitute the 18 hells of the traditional Abhidharma cosmology.