'In the beginning the Self was all this; there was nothing else
whatsoever thinking. He thought, shall I send forth worlds? He sent
forth these worlds' (Ait. Âr. II, 4, 1, 1); 'From that Self sprang ether,
from ether air, from air fire, from fire water, from water earth' (Taitt.
Up. II, 1); 'From this great Being were breathed forth the Rig-veda,' &c.--
These and similar texts referring to the creation have all the same
purport: they all teach us that the Supreme Lord is the cause of the
world. We therefore conclude that in the Ch. passage also the Sat,
which is said to be the cause of the world, is the Supreme Lord.