Vishnupurana 2.15.p10

2.15.p10

"Ribhu said:—‘O twice-born one, he, who has got appetite, is pleased with his meals. I have got no appetite and hence have got no satisfaction: why do you question me in vain? Hunger is created, when by fire the earthly element is dried; and thirst is produced when the moisture of the body is absorbed by internal heat. These are the the functions of the body, O twice-born one, not mine—I am satisfied with that by which they are removed. And pleasure and contentment are the faculties of the mind, O twice-born one; ask those men about it whose minds are affected by them. As regards your three other questions—Where I dwell, wither I go and whence I come, hear my reply.