Chandogya Upanishad 5.14

atha hovācendradyumnaṃ bhāllaveyam vaiyāghrapadya kaṃ tvam ātmānam upāssa iti vāyum eva bhagavo rājann iti hovāca eṣa vai pṛthagvartmātmā vaiśvānaro yaṃ tvam ātmānam upāsse tasmāt tvāṃ pṛthag balaya āyanti pṛthag rathaśreṇayo 'nuyanti

Then he said to Indradyumna Bhâllaveya: 'O Vaiyâghrapadya, whom do you meditate on as the Self?' He replied: 'Air only, venerable king.' He said: 'The Self which you meditate on is the Vaisvânara Self, called Prithagvartman (having various courses). Therefore offerings come to you in various ways, and rows of cars follow you in various ways.

atsy annaṃ paśyasi priyam atty annaṃ paśyati priyaṃ bhavaty asya brahmavarcasaṃ kule ya etam evam ātmānaṃ vaiśvānaram upāste prāṇas tv eṣa ātmana iti hovāca prāṇas ta udakramiṣyad yan māṃ nāgamiṣya iti

'You eat food and see your desire, and whoever thus meditates on that Vaisvânara 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.'