Khandogya-Upanishad: Fifth Prapathaka, Fourteenth Khanda
1. Then he said to Indradyumna Bhallaveya: “O Vaiyaghrapadya, whom do you meditate on as the Self?” He replied: “Air only, venerable king.” He said: YThe Self which you meditate on is the Vaisvinara Self, called Prithagvartman (having various courses). Therefore offerings come to you in various ways, and rows of cars follow you in various ways.
2. “You eat food and see your desire, and whoever thus meditates on that Vaisvanara Self, eats food and sees his desire, and has Vedic glory in his house.
“That, however, is but the breath of the Self, and your breath would have left you, if you had not come to me.”