Pancha-Kosha
Kosha, often translated as "sheath", is a covering of the Atman, or "self" according to Vedantic philosophy.
The five sheaths (Pancha-Kosha) are described in the Taittiriya Upanishad (2.1-5), and they are often visualised as the layers of an onion:
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Annamaya-Kosha: "Food" sheath -The physical body.
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Pranamaya-Koshaa: "Energy" sheath - Prana, Shakti, Nadi, Chakra, Aura (Bio-electromagnetic field).
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Manomaya-Kosha: "Mind" sheath - The thinking mind, emotions, likes & dislikes, agitation & phobia.
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Vijnanamaya-Kosha: "Knowledge" sheath - Conscience, wisdom, discernment, intellect.
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Anandamaya-Kosha: "Bliss" sheath - Pure consciousness/awareness, connection with the universe.

Traya-Sarira
The Pancha-Kosha are further classified as Traya-Sarira (Three Bodies):
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Sthula-Sarira: The gross body, made up of physical matter, consists of Annamaya Kosha.
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Suksma-Sarira: The astral body, consists of Pranamaya Kosha, Manomaya Kosha and Vijnanamaya Kosha.
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Karana-Sarira: The causal body, consists of Ananadamaya Kosha.
Thus, the Pancha-Kosha/Traya-Sarira basically consistutes what we know as the "self".
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Physical Form
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Mental-Emotional Energies
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Karmic Energies (The Hidden Consciousness, aka The Sub-consciousness)
