Śivasaṃhitā 3.4

This verse presents the foundational taxonomy of the ten vāyus, or vital winds, that animate the subtle body according to yogic physiology. The first five are the primary vital airs governing essential life functions, while the remaining five—nāga, kūrma, kṛkara, devadatta, and dhanañjaya—manage more peripheral but still significant bodily processes such as belching, blinking, and sneezing.

The term vāyu derives from the Sanskrit root vā, meaning to blow or move. These are not merely physical air currents but prāṇic forces with distinct directional qualities and functional domains. Prāṇa governs inhalation and the chest region; apāna rules downward elimination; samāna oversees digestion; udāna manages the throat and upward movement; vyāna permeates the entire body.

This tenfold classification has deep roots in Indian thought, appearing in texts such as the Praśnopaniṣad (3.5) centuries before the Śivasaṃhitā. Understanding these distinctions is not merely academic—it forms the theoretical backbone of prāṇāyāma practice, where specific breathing techniques are designed to redirect, balance, or amplify particular vāyus within the practitioner’s subtle body.