Kośa

Kosha refers to the five concentric sheaths or layers that make up the human being, from the gross physical body to the subtlest layer of bliss. In everyday understanding, they serve as a map for self-exploration, helping one identify which layer of experience — body, energy, mind, intellect, or joy — is active at any moment. This framework is practically used in yoga and Ayurveda to diagnose imbalances at specific layers.

In spiritual practice, the Pancha Koshas represent five veils of ignorance (avidyā) that progressively obscure the true Self (Ātman). The sādhaka undertakes a meditative journey inward through each sheath — from gross matter to pure ānanda — using the method of discrimination (viveka) taught in the Taittirīya Upaniṣad. Each kosha transcended brings the aspirant closer to the direct realization that awareness itself is beyond all coverings.

From the standpoint of absolute reality, no kosha truly exists as an independent entity. The Ātman is never actually enclosed or limited by any sheath; the sheaths are superimpositions (adhyāsa) upon the non-dual Brahman, much as a rope is mistaken for a snake. Upon realization, all five koshas are recognized as mithyā — neither fully real nor fully unreal — and the Self shines as ever-free, uncovered, and self-luminous.