The Taittiriya Upanishad (2.1-5) maps human existence as 5 nested sheaths — like a Russian doll. Each "I am" identification (I am body, I am breath, I am mind, I am wise, I am bliss) is a kosha. Beyond all 5 is the Atman — pure Self. This map is the foundation of Advaita's atma-vichara, yoga's pranic + meditation work, and every traditional Hindu meditation technique.
1 · Annamaya kosha · अन्नमय कोश — Food sheath
Body: Sthula (gross). Constituents — The physical body. Made of food (anna) — grows by food, sustained by food, dies and returns to food.
Recognise it — When you say "I am tall" or "I am hungry" or "I am male/female" — you are identifying with annamaya kosha.
Practice — Asana (yoga postures). Hatha yoga. Proper ahaara (nutrition). Ayurveda dosha-balancing. Cleansing (shatkarmas) — neti, kunjala, dhauti.
Disorder — Physical illness, disease, deformity. Treated by allopathic medicine + Ayurveda + asana.
"From food are born all beings — whoever lives on this earth. By food alone they live. And to food at the end they return." (Taittiriya 2.2.1)
2 · Pranamaya kosha · प्राणमय कोश — Vital-energy sheath
Body: Sukshma (subtle). Constituents — The 5 pranas (prana, apana, samana, udana, vyana) + the 5 upa-pranas (naga, kurma, krikara, devadatta, dhanjnaya). The 72,000 nadis + the 7 chakras live here.
Recognise it — The energy / aliveness you feel when fully alive vs the dullness when depleted. The breath is the most accessible aspect.
Practice — Pranayama. Chakra meditation. Kundalini practices. Mantra japa (charges the prana). Mudras.
Disorder — Pranic depletion → chronic fatigue, immune issues. Pranic blockage → psychosomatic disease.
"The gods breathe after prana — and so do humans and animals. Prana is the life of all beings. Therefore it is called the universal life-span." (Taittiriya 2.3.1)
3 · Manomaya kosha · मनोमय कोश — Mental sheath
Body: Sukshma (subtle). Constituents — The mind (manas) + its content — thoughts, emotions, memories, desires. Includes the 5 jnana-indriyas (sense-organs) + 5 karma-indriyas (action-organs). The active processing mind.
Recognise it — The constant mental chatter. Emotional reactions. Likes + dislikes. The "I want / I don't want" voice.
Practice — Pratyahara (sense-withdrawal). Manana (contemplation). Svadhyaya (self-study). Bhakti (devotional emotion-channeling). Mantra-japa moves the manas to a single thought-stream.
Disorder — Anxiety, depression, OCD, anger-disorders, addictions. Mental imbalance.
"The self made of mind. Its head is faith. Its right side is righteousness. Its left side is truth." (Taittiriya 2.4.1)
4 · Vijnanamaya kosha · विज्ञानमय कोश — Intellect / wisdom sheath
Body: Sukshma (subtle). Constituents — Buddhi (intellect / discernment), Chitta (memory-store), Ahamkara (ego-I-sense). The deciding + discriminating faculty. Beyond raw mind.
Recognise it — When you can WITNESS your thoughts without being swept by them. When you discern between dharma + adharma in a moral test.
Practice — Jnana yoga — atma-vichara ("Who am I?"). Vichara, vairagya, viveka. Study of Upanishads. Listening to a realised guru.
Disorder — Mis-discrimination, mistaken identity (I am body / I am mind), perversions of values (calling adharma dharma).
"Wisdom performs the yajna; wisdom performs the actions; all the devas worship wisdom as supreme Brahman." (Taittiriya 2.5.1)
5 · Anandamaya kosha · आनन्दमय कोश — Bliss sheath
Body: Karana (causal). Constituents — The seed-state. In deep sleep + samadhi, only this kosha persists. The "I" that experiences ananda (joy) without an object. Closest to the Atman.
Recognise it — The bliss you experience in deep dreamless sleep (which you only KNOW about after waking — "I slept well"). The joy in samadhi. The pure happiness of being itself, before any object causes it.
Practice — Samadhi (the 8th limb of yoga). Nirvikalpa samadhi (the highest). Resting in the "I am" without object.
Disorder — Existential boredom even in pleasure. Inability to relax. Loss of capacity for natural bliss.
"He realised: Bliss is Brahman. For from bliss are born all these beings. Born, they live by bliss. Departing, they enter into bliss." (Taittiriya 3.6.1)
The 3 bodies + the 3 avasthas
The 5 koshas group into 3 bodies (sharira), and the 3 bodies operate in 3 states of consciousness (avastha) — waking, dreaming, deep sleep.
Sthula sharira · स्थूल शरीर (Gross body) — Contains Annamaya kosha. Avastha: Jagrat (waking state). The physical body — visible to others, dies at end of life.
Sukshma sharira · सूक्ष्म शरीर (Subtle body) — Contains Pranamaya + Manomaya + Vijnanamaya koshas. Avastha: Svapna (dream state). The subtle body carries the soul from one birth to the next. Dies at moksha alone — not at physical death.
Karana sharira · कारण शरीर (Causal body) — Contains Anandamaya kosha + the seed-impressions of all karma (samskaras + vasanas). Avastha: Sushupti (deep sleep). The seed of all future lives. Dies only at videhamukti.
Turiya — the 4th state
Turiya (literally "the fourth") — pure consciousness behind / beyond the 3 avasthas. Not a state in the same sense — it underlies all 3 states. It is what witnesses waking, dreaming, deep sleep. The Mandukya Upanishad describes it as "shantam, shivam, advaitam" — peaceful, auspicious, non-dual.
Realisation — Recognised in samadhi. Made permanent in sahaja samadhi. The jivanmukta lives in turiya 24/7 — while the body experiences waking/dreaming/sleeping in succession.
Practical use — The koshas-map is a meditative tool. Sitting quietly, peel back identification one kosha at a time: "I am not just this body (annamaya)... I am not just this breath (pranamaya)... I am not just this mind (manomaya)..." until pure awareness alone remains.