'If a man is healthy, wealthy, and lord of others, surrounded by all human enjoyments, that is the highest blessing of men. Now a hundred of these human blessings make one blessing of the fathers who have conquered the world (of the fathers). A hundred blessings of the fathers who have conquered this world make one blessing in the Gandharva world. A hundred blessings in the Gandharva world make one blessing of the Devas by merit (work, sacrifice), who obtain their godhead by merit. A hundred blessings of the Devas by merit make one blessing of the Devas by birth, also (of) a Srotriya who is without sin, and not overcome by desire. A hundred blessings of the Devas by birth make one blessing in the world of Pragapati, also (of) a Srotriya who is without sin, and not overcome by desire. A hundred blessings in the world of Pragapati make one blessing in the world of Brahman, also (of) a Srotriya who is without sin, and not overcome by desire. And this is the highest blessing. 'This is the Brahma-world, O king,' thus spake Yagnavalkya. Ganaka Vaideha said: 'I give you, Sir, a thousand. Speak on for the sake of (my) emancipation.' Then Yagnavalkya was afraid lest the King, having become full of understanding, should drive him from all his positions.
In plain words: Yajnavalkya compares joys. The best human life, healthy, rich and powerful, is one unit. Each higher world, of ancestors, heavenly musicians (Gandharvas), gods, and the creator Prajapati, holds a hundred times more joy than the one below, and Brahman's joy is highest. A learned person (Srotriya) who is free of wrongdoing and greed already has these joys. King Janaka offers a thousand gifts and asks for more teaching, and Yajnavalkya worries that the king, now so wise, will drive him from all his positions.