19. Those who are the happiest are not necessarily those for whom life has been easiest. Emotional stability results from an attitude. It is refusing to yield to depression and fear, even when black clouds float overhead. It is improving that which can be improved and accepting that which is inevitable.
He concluded in the last scene that we are given two choices in life. We can allow ourselves to love and care for others, which makes us vulnerable to their sickness, death, or rejection. Or we can protect ourselves by refusing to love. Lewis decided that it is better to feel and to suffer than to go through life isolated, insulated, and lonely.