tam ātmānam avehi mām

yena-by whom (the Supreme Brahman); prasuptah-sleeping; purusah-a man; svapam-the subject of a dream; veda-knows; atmanah-of himself; tada-at that time; sukham-happiness; ca-also; nirgunam-without contact with the material environment; brahma-the supreme spirit; tam-Him; atmanam-the pervader; avehi-just know; mam-Me.