Vishnupurana 2.15.27

2.15.27

kim asvādv atha vā mṛṣṭaṃ bhuñjato 'nnaṃ dvijottama
mṛṣṭam eva yadāmṛṣṭaṃ tad evodvegakāraṇam //

"Ribhu. 'A hungry man, Brahman, must needs be satisfied when he has finished his meal. Why should you inquire if my hunger has been appeased? When the earthy element is parched by fire, then hunger is engendered; and thirst is produced when the moisture of the body has been absorbed (by internal or digestive heat). Hunger and thirst are the functions of the body, and satisfaction must always be afforded me by that by which they are removed; for when hunger is no longer sensible, pleasure and contentment of mind are faculties of the intellect: ask their condition of the mind then, for man is not affected by them. For your three other questions, Where I dwell? Whither I go? and Whence I come? hear this reply. Man (the soul of man) goes every where, and penetrates every where, like the ether; and is it rational to inquire where it is? or whence or whither thou goest? I neither am going nor coming, nor is my dwelling in any one place; nor art thou, thou; nor are others, others; nor am I, I. If you wonder what reply I should make to your inquiry why I made any distinction between sweetened and unsweetened food, you shall hear my explanation. What is there that is really sweet or not sweet to one eating a meal? That which is sweet, is no longer so when it occasions the sense of repletion; and that which is not sweet, becomes sweet when a man (being very hungry) fancies that it is so. What food is there that first, middle, and last is equally grateful. As a house built of clay is strengthened by fresh plaster, so is this earthly body supported by earthly particles; and barley, wheat, pulse, butter, oil, milk, curds, treacle, fruits, and the like, are composed of atoms of earth. This therefore is to be understood by you, that the mind which properly judges of what is or is not sweet is impressed with the notion of identity, and that this effect of identity tends to liberation.'