iv. 3. 6.

a O Indra and Agni, do ye two make firm
The brick that quaketh not;
And let it with its back repel
The sky and earth and atmosphere.
b Let Viçvakarman place thee in the ridge of the atmosphere, encompassing, expanding, resplendent, possessing the sun, thee that dost illumine the sky, the earth, the broad atmosphere, support the atmosphere, make firm the atmosphere, harm not the atmosphere; for every expiration, inspiration, cross-breathing, out-breathing, support, movement; let Vayu protect thee with great prosperity, with a covering [1] most healing; with that deity do thou sit firm in the manner of Angiras.
c Thou art the queen, the eastern quarter; thou art the ruling, the southern quarter; thou art the sovereign, the western quarter; thou art the self-ruling, the northern quarter; thou art the lady paramount, the great quarter.
d Protect my life; protect my expiration; protect my inspiration; protect my cross-breathing; protect my eye; protect my ear; quicken my mind; strengthen my voice; protect my breath; accord me light.