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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:

  1. Upward-going winds (burps, hiccups).
  2. Downward-going winds (flatulence).
  3. Winds in the belly (outside the bowels).
  4. Winds within the intestines.
  5. Winds coursing through the limbs (blood pressure/circulation).
  6. In-breaths and out-breaths (assāsa-passāsa).

Quote

katamā cāvuso, vāyodhātu?
“And what, friends, is the air element (vāyodhātu)?”

vāyodhātu siyā ajjhattikā, siyā bāhirā.
“The air element can be internal or external.”

katamā cāvuso, ajjhattikā vāyodhātu?
“And what, friends, is the internal air element?”

yaṃ ajjhattaṃ paccattaṃ vāyo vāyogataṃ upādinnaṃ, seyyathidaṃ – uddhaṅgamā vātā, adhogamā vātā, kucchisayā vātā, koṭṭhāsayā vātā, aṅgamaṅgānusārino vātā, assāso passāso iti, yaṃ vā panaññampi kiñci ajjhattaṃ paccattaṃ vāyo vāyogataṃ upādinnaṃ – ayaṃ vuccatāvuso, ajjhattikā vāyodhātu.
“Whatever internal, individual air, belonging to air, is grasped, such as upward-going winds, downward-going winds, winds in the belly, winds in the intestines, winds coursing through the limbs, in-breaths and out-breaths, or any other internal, individual air, belonging to air, that is grasped – this, friends, is called the internal air element.”

— Mahāhatthipadopama Sutta (MN 28)

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) – Detailed description of how the wind element provides physical support and locomotion.

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