Yahweh [God] must become man precisely because he has done man a wrong. He, the guardian of justice, knows that every wrong must be expiated, and Wisdom knows that moral law is above even him. Because his creature has surpassed him he must regenerate himself
Carl JungThe word 'happiness' would lose its meaning if it were not balanced and contrasted and compared to sadness. In comparing how an experience could have been worse we develop gratitude and happiness, while if we compare it how it could have been better we develop bitterness and sadness.
Carl Jung