If the situation or problem is such that it can be remedied, then there is no need to worry about it. In other words, if there is a solution or a way out of the difficulty, then one needn't be overwhelmed by it. The appropriate action is to seek its solution. It is more sensible to spend the energy focusing on the solution rather than worrying about the problem. Alternatively, if there is no way out, no solution, no Possibility of resolution, then there is also no point in being worried about it, because you can't do anything about it anyway. In that case, the sooner you accept this fact, the easier it will be on you. This formula, of course, implies directly confronting the problem. Otherwise you won't be able to find out whether or not there is a resolution to the problem.

— Dalai Lama

from The Art of Happiness