Maitreya said: From Brahmā’s eastern mouth the Ṛg Veda and activities of the hotā were established. From his southern mouth the Yajur Veda and activities of the Aahvaryu were established. From his western mouth the Sāma Veda and the activities of the udgātā were established. From his northern mouth the Atharva Veda and the activities of the brahma were established. This verse describes the creation of the four hotas. The action of the hotā is śastra, chanting of mantras without intonation (following Ṛg-veda). The action of the adhvayu is sacrificial performance (ījya) (following Yajur-veda). Singing verses (stuti-stomam) is the action of the udgātā (following Sāma-veda). This takes the form of trivṛt-stoma. The action of the brahma (following Atharva-veda) is remedial measure.