We two, my dear friend, are sun and moon

"I am serious. It is not our task to come closer together, no more than sun and moon or sea and land come closer together. We two, my dear friend, are sun and moon, we are sea and land. Our goal is not to blend into one another but to know one another, and for each to learn to see and honour in the other what he himself is - the other's counterpart and compliment."