'Yagnavalkya,' he said, 'with how many deities does the Brahman priest on the right protect to-day this sacrifice?' 'By one,' replied Yagnavalkya. 'And which is it?' 'The mind alone; for the mind is endless, and the Visvedevas are endless, and he thereby gains the endless world.'

In plain words: Asvala asks how many gods the Brahman priest, who sits on the right and watches over the ritual, uses to protect it. Yagnavalkya says only one: the mind. The mind is endless, like the countless gods called the Visvedevas, so through it the priest wins an endless world.