He (the udgatri priest) should meditate on the quarter of space facing which he is going to chant the praise.
Sama Veda, Chandogya Upanishad I, III – Meditation on the Udgitha as the Sun and the Vyana, 11
Finally, he (the udgatri priest) should meditate on himself and then on the object desired and chant the praise correctly. Thus will be quickly fulfilled for him the desire, desiring which he may offer the hymn of praise, yea, desiring which he may offer the hymn of praise.
Sama Veda, Chandogya Upanishad I, III – Meditation on the Udgitha as the Sun and the Vyana, 12
Who really knows? Who can presume to tell it? Whence was it born? Whence issued this creation? Even the Gods came after its emergence. Then who can tell from whence it came to be?
Rig Veda X, 129, 6
That out of which creation has arisen, whether it held it firm or it did not, He who surveys it in the highest heaven, He surely knows or maybe He does not!
Rig Veda X, 129, 7
From blazing Ardor Cosmic Order came and Truth; from thence was born the obscure night; from thence the Ocean with its billowing waves.
Rig Veda X, 190, 1
