The Mathnawi of Jalaluddin Rumi

The Arab became the Prophet's guest that night: he drank half the milk of a single goat and (then) closed his lips.
He (the Prophet) urged him to drink the milk and eat the scones. “By God,” said he, “in all sincerity I have eaten my fill.
Not hypocrisy or affectation and artifice: I have become fuller than I was yesternight.”

❀280. All the people of the (Prophet's) house were left in astonishment (to think that) this lamp had been filled by this one drop of oil,
And that what is (only) a swift's (portion of) food should become the (means of) filling the belly of such an elephant.
Whispering arose amongst the men and women—“That man who has the body of an elephant eats as little as a fly!”
The greed and vanity of unbelief was overthrown: the dragon was satisfied with the food of an ant.
The beggar-like greediness of unbelief departed from him: the sweet food of the Faith made him stout and strong.

❀285. He who was quivering from ravenous hunger beheld, like Mary, the fruit of Paradise.
The fruit of Paradise sped to his body: his Hell-like belly gained repose.
The essence of the Faith is a mighty blessing and exceedingly delicious food, O thou who art content with naught of the Faith but the profession!

Explaining that the Light which is the food of the spirit becomes the food of the saint's body, so that it (his body) also becomes friendly with the spirit (according to the saying of the Prophet), “My satan hath accepted Islam at my hands.”

Although that (Light) is the food of the spirit and the (spiritual) sight, the body too partakes of it, O son.
If the devilish body had not become fond of eating it, the Prophet would not have said, “The devil accepted Islam.”

❀290. How should the devil become a Moslem until it drink of the sweet food by which the dead is made living?
The devil is passionately in love with the world, blind and deaf; (but this) love, no doubt, may be cut off by another love.
When it tastes the wine from the cellar of clairvoyance, little by little it will transfer its love thither.
O thou whose belly is greedy, turn away thus (from the world): the only method is change of food.
O thou whose heart is sick, turn to the remedy: the entire regimen is change of disposition.

❀295. O thou who art kept in pawn to food, thou wilt escape if thou suffer thyself to be weaned.
Verily, in hunger there is plenteous food: search after it diligently and cherish the hope (of finding it), O shrinker.
Feed on the Light, be like the eye, be in accord with the angels, O best of mankind.
Like the Angel, make the glorification of God thy food, that like the angels thou mayst be delivered from vexation.
If Gabriel pays no attention to the carcase, (yet) how should he be inferior in strength to the vulture?

❀300. What a goodly table is spread in the world! But it is quite hidden from the eyes of the vile.
Though the world should become a delightful orchard, still the portion of the mouse and the snake would consist of earth.

How the corporealists ignore the food of the spirit and tremble with anxiety for the vile food.

Its (the vile creature's) food is earth, whether in winter or in spring; thou art the lord of creation: how is it thou eatest earth like the snake?
The wood-worm in the midst of wood says, “For whom (else) should be such fine sweetmeat?”
The dung-worm amidst (all) that pollution knows no dessert in the world but filth.