... how they departed and hid themselves in mountains, caves, and in solitary, secluded places
Notes from Wikiquote
and how these men became dead during their lives for the sake of the life that is in God | wandering in desert regions and amid rocky crags like men who have lost their way | and how the entire world is not comparable to the glory of any one of them. | Some of them dwelt on sheer and rugged crags | some at the foot of mountains or in deep gorges | some in dens and hollows of the earth | like men who burrow in the ground to lay snares for foxes | some in tombs | and some on the peaks of mountains. | Some erected small hovels in the desert | and therein passed the rest of their lives. | And some built small stone enclosures on the summits of mountains, that is, small cells | and dwelt there as pleasurably as though they were in the palaces of kings. | They had no concern for how they could find their livelihood | but only how each of them could please God | and bring his struggle to completion in a beautiful way. | Homily 75, p. 519