Daniel 1:8

They say that dreams are more sure and clear when they happen towards the end of the night, because then the vigour of the soul emerges, and heavy sleep departs. As to the seasons of the year, dreams are calmer in spring, since summer relaxes, and winter somehow hardens, the soul; while autumn, which in other respects is trying to health, is apt to enervate the soul by the lusciousness of its fruits. Then, again, as regards the position of one’s body during sleep, one ought not to lie on his back, nor on his right side, nor so as to wrench his intestines, as if their cavity were reversely stretched: a palpitation of the heart would ensue, or else a pressure on the liver would produce a painful disturbance of the mind. …

9. When Elijah, in his flight from Jezebel, lay weary and desolate beneath the oak, there came an angel who raised him up and said, “Arise and eat.” And he looked, and behold there was a cake and a cruse of water at his head. Had God willed it, might He not have sent His prophet spiced wines and dainty dishes and flesh basted into tenderness? When Elisha invited the sons of the prophets to dinner, he only gave them field-herbs to eat; and when all cried out with one voice: “There is death in the pot,” the man of God did not storm at the cooks (for he was not used to very sumptuous fare), but caused meal to be brought, and casting it in, sweetened the bitter mess with spiritual strength as Moses had once sweetened the waters of Mara. …

46. Daniel, whose meat was the scanty portion of a prophet, did not fear the lions’ den. The Apostles rejoiced in suffering and death for the Name of Christ. To Paul his sacrifice was the crown of righteousness. The Martyrs sang hymns as they offered their necks to the executioner, and climbed with psalms the blazing logs piled for them. The consciousness of faith takes away the weakness of nature, transforms the bodily senses that they feel no pain, and so the body is strengthened by the fixed purpose of the soul, and feels nothing except the impulse of its enthusiasm. The suffering which the mind despises in its desire of glory, the body does not feel, so long as the soul invigorates it. It is, then, a natural effect in man, that the zeal of the soul glowing for glory should make him unconscious of suffering, heedless of wounds, and regardless of death. …

28. Lastly, Elijah, whom the Lord was training to the perfection of virtue, found at his head a cake and a cruse of water; and then fasted in the strength of that food forty days and forty nights. Our fathers, when they passed across the sea on foot, drank water not wine. Daniel and the Hebrew children, fed with their peculiar food, and with water to drink, overcame, the former the fury of the lions; the latter saw the burning fire play around their limbs with harmless touch.