Grammatical Analysis
Vāyodhātu: [f.] wind element; element of motion; kinetic energy. Formed by vāyo (wind, air, blowing) + dhātu (element).
Orthodox Definition
Vāyodhātu is the fourth and final of the great physical elements (mahābhūta). It represents the abstract material principle of motion, propulsion, vibration, and support.
According to the commentaries, its characteristic is strengthening or propping up (vitthambhana-lakkhaṇā), like air filling a balloon to give it shape. Its function is to cause the movement or shifting of material groups from one location to another (samudīraṇa-rasā). Whenever the physical body walks, stretches, speaks, or breathes, it is the vāyodhātu generated by mental volition (cittaja-rūpa) that acts as the kinetic engine moving the solid earth element.
Internally, it manifests as six distinct biological winds:
- Upward-going winds (burps, hiccups).
- Downward-going winds (flatulence).
- Winds in the belly (outside the bowels).
- Winds within the intestines.
- Winds coursing through the limbs (blood pressure/circulation).
- In-breaths and out-breaths (assāsa-passāsa).
Textual References
- Sutta: Mahāhatthipadopama Sutta (MN 28) – Contrasting the internal biological winds with the massive external cyclones that uproot trees, proving both are mere impersonal elements.
- Abhidhamma: Dhammasaṅgaṇī (Analysis of kinetic matter).
- Commentary: Visuddhimagga (Chapter XI) – Technical description of how wind element provides physical support and locomotion.