The Compendium of Bheḷa 6.22

Why food eaten by day in indigestion is not corrupted in men, / or food kept overnight is corrupted—learn from me the cause thereof.

For one who is exercising, walking about, and whose mind is distracted, / and when the flow of chyle is slow, food eaten by day is not corrupted.

They say the heart is like a lotus: through the close of day / it is closed, and it is opened by the rays of the sun.

When his heart is awakened and the channels are open, / those originating from the heart, through the open channels by day,

his bodily elements do not undergo moisture by day on that account. / When morning food is undigested, and he is satisfied likewise by day,

by this rule, the evening meal is not further corrupted; / but stale food is corrupted and gives rise to diseases.

When the passages are thus closed, wind and fire of embodied beings— / even without one who exercises—cook food at night.

When the heart is languid at night, and in states of sudden nausea, / and even when the channels are closed, and he takes no exercise,

the food residue that remains in the heart and in the stomach, / because of that āma lingering in him, undergoes digestion in the body;

when the heart is diseased, feces and urine obstructed at night's end, / and chyme arising from pitta and phlegm is present,

and when the wind is trapped in the food pocket and moves upward, / [it produces] constriction of the heart, nausea, salivation, heaviness of the limbs,

that food residue may produce fainting, […], thirst, / fever, vomiting, diarrhea, hiccup, or aversion to food.

Stale food during indigestion causes these diseases resembling poison; / therefore stale food is forbidden during indigestion. // […] // Twenty-third chapter. // […]