Oneself

The only thing one can usually change in one's situation is one's self. And yet one can't change that either—only ask our Lord to do so, keeping on meanwhile with the sacraments, prayers, and ordinary rule of state. ... When the need comes God never fails to carry out in us His otherwise impossible instructions. In fact He always has to do all the things—all the prayers, all the virtues. ... Having to depend solely on God is what we all dread most. And of course that just shows how very much, how exclusively, we have been depending on things.

—C.S. Lewis, Letters.