C.s. Lewis said this quote
“ Your man may be untroubled about the Future, not because he is concerned with the Present, but because he has persuaded himself that the Future is going to be agreeable. As long as that is the real course of his tranquillity, his tranquillity will do us good, because it is only piling up more disappointment, and therefore more impatience, for him when his false hopes are dashed. If, on the other hand, he is aware that horrors may be in store for him and is praying for the virtues, wherewith to meet them, and meanwhile concerning himself with the Present because there, and there alone, all duty, all grace, all knowledge, and all pleasure dwell, his state is very undesirable and should be attacked at once. ”