The libations poured on the sacrificial fire get up to the Sun. From the Sun originates rain. From rain comes food. From food are born living creatures.
अग्नौ प्रास्ताहुतिर्ब्रह्मचादित्यमुपगच्छति॥ आदित्याज्जायते वृष्टिर्वृष्टेरन्नं ततः प्रजाः।