The Ribhus make their parents young and sleep twelve days in the house of Agohya

The brothers renew their decrepit parents, draw a cow from a hide, wander to the Sun's house and sleep twelve days while the earth grows fertile.

The story, beat by beat

1. The Ribhus' parents lie old and frail like mouldering posts.
2. With true prayers and constant labour the sons make them young so that they move at will.
3. They bring a cow out of a hide, tend her for a year and reunite her with her calf.
4. Wind-sped, they travel round the sky and reach the house of Savitr, Agohya.
5. They sleep twelve days as his guests; fields, rivers, plants and water appear.
6. Waking, they ask who woke them; the goat says it was the hound.
7. Savitr gives them immortality.

renewal parents sleep fertility