The heart of man can be full of so much pain, even when things are
exteriorly “all right”. It becomes all the more difficult because
today we are used to thinking that there are explanations for
everything. But there is no explanation of most of what goes on in our own hearts, and we cannot account for it all. No use resorting to the kind of mental tranquilizers that even religious explanations
sometimes offer. Faith must be deeper than that, rooted in the unknown and in the abyss of darkness that is the ground of our being. No use teasing the darkness to try to make answers grow out of it. But if we learn how to have a deep inner patience, things solve themselves, or God solves them if you prefer: but do not expect to see how. Just learn to wait, and do what you can and help other people. Often it is in helping someone else we find the best way to bear our own trouble.
— Thomas Merton from his Christmas letter, 1966