To gain such remarkable influence, the concept of wilderness had to become loaded with some of the deepest core values of the culture that created and idealized it: it had to become sacred. This possibility had been present in wilderness even in the days when it had been a place of spiritual danger and moral temptation. If Satan was there, then so was Christ, who had found angels as well as wild beasts during His sojourn in the desert. In the wilderness the boundaries between human and nonhuman, between natural and supernatural, had always seemed less certain than elsewhere.
This reminds me of the book Confessions by Augustine that I am reading. When Augustine reaches his conversion to Christianity, he has this big revelation while in a Milan garden. Highlighting this idea of sacred nature and sublime acts within it.