"Those are the same stars, and that is the same moon, that look down upon your brothers and sisters, and which they see as they look up to them, though they are ever so far away from us, and each other."
Friendship is a sun, which rises, Only when your heart has set on it Friendship is a throne, on which you can sit, Only when you share your kingdom with it.
People never know how special someone is until they leave, but maybe sometimes its important to leave, so they are given that chance to see how special that someone really is.