The spiritual function of fierce terrain (in the apophatic tradition) is to bring us to the end of ourselves, to the abandonment of language and the relinquishment of ego. A vast expanse of jagged stone, desert sand, and towering thunderheads has a way of challenging all the mental constructs in which we are tempted to take comfort and pride, thinking we have captured the divine. The things that ignore us save us in the end.
The heart always has an object of love; it is always attracted to some sign of beauty. Whatever the heart holds its attention on, it will acquire its qualities. Rumi said, "If your thought is a rose, you are rose garden. If your thought is a thorn, you are kindling for the stove." Being between the attraction of the physical world and the ego, on the one hand, and spirit and its qualities on the other, the heart is pulled from different sides. But ultimately behind all these various attractions lies one great Attractor.