In each of my friends there is something that only some other friend can fully bring out. By myself I am not large enough to call the whole man into activity; I want other lights than my own to show all his facets... Hence true Friendship is the least jealous of loves. Two friends delight to be joined by a third, and three by a fourth, if only the newcomer is qualified to become a real friend. They can then say, as the blessed souls say in Dante, "Here comes one who will augment our loves." For in this love "to divide is not to take away.
C. S. LewisYou can put this another way by saying that while in other sciences the instruments you use are things external to yourself (things like microscopes and telescopes), the instrument through which you see God is your whole self. And if a man's self is not kept clean and bright, his glimpse of God will be blurred - like the Moon seen through a dirty telescope. That is why horrible nations have horrible religions: they have been looking at God through a dirty lens.
C. S. LewisThe people with very hard problems are understood by God. He knows what wretched machines they are trying to drive. Some day he will fling them away and give those people new ones; then they may astonish everyone, for they learned their driving in a hard school. Some of the last will be first and some of the first will be last.
C. S. Lewis