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 for 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 in helping someone else we find the best way to bear with our own trouble.-Thomas Merton, To Friends, In A Christmas Letter -1965.
Merton on Trouble
I saved this a while ago when R. showed it to me, and I often think of it.