Moreover, from time to time they [the angels] appeared to them to teach them how they ought to lead their lives.
Notes from Wikiquote
or sometimes the saints themselves asked them for what was needed. | And sometimes they guided them when they had strayed along the way | or sometimes they came to their rescue when they fell into temptations. | Sometimes they snatched them from unexpected mishap and peril that overtook them | such as a snake, or a ledge, or a splinter of wood, or a blow from a stone. | Or sometimes, when the enemy was openly waging war on the saints, they showed themselves visibly to their eyes and said that they were sent to their aid | and brought them confidence, daring, and refreshment by their words. | At other times they performed healings through them | or at times they cured the saints themselves when they fell into certain ailments. | Sometimes, when their bodies succumbed from lack of food, with a touch of the hand, or with words | they fortified and strengthened them above nature | or sometimes, they brought them food, loaves of bread (which were oftentimes even hot), and other things for their nourishment. | To some of them they foretold their departure | and to others, the very manner of their departing. | Homily 5, pp. 158-9