Śatapatha Brāhmaṇa ("of a hundred paths") 4.2.2.1

4.2.2.1

ātmā ha vā asyāgrayaṇaḥ | so 'syaiṣa sarvameva sarvaṃ hyayamātmā tasmādanayā gṛhṇātyasyai hi sthālī bhavati sthālyā hyenaṃ gṛhṇāti sarvaṃ vā iyaṃ sarvameṣa grahastasmādanayā gṛhṇāti

The Âgrayana graha, forsooth, is his self (body, trunk), and as such it is his all; for this self is one's all. Therefore he draws it by means of this (earth), for of her is the bowl, and with a bowl he draws this (libation); and this (earth) is all, as this graha is all: hence he takes it by means of this (earth).