Śatapatha Brāhmaṇa ("of a hundred paths") 10.5.2.6

10.5.2.6

yadetanmaṇḍalaṃ tapati tanmahadukthaṃ tā .!caḥ sa ṛcāṃ loko'tha yadetadarcirdīpyate tanmahāvrataṃ tāni sāmāni sa sāmnāṃ loko'tha ya eṣa etasminmaṇḍale puruṣaḥ so'gnistāni yajūṃṣi sa yajuṣāṃ lokaḥ

Now as to the sacrifice. That shining orb is the same as this gold plate (under the altar), and that glowing light is the same as this lotus-leaf (under the altar); for there are those (divine) waters, and the lotus-leaf is water; and that man in yonder orb is no other than this gold man (in the altar): thus, by laying down these (in the fire-altar), it is that (divine) triad he constructs. And after the consummation of the sacrifice it rises upwards and enters that shining (sun): one need not therefore mind destroying Agni, for he is then in yonder (world). Thus, then, in regard to the sacrifice.