Attraction and aversion are two feelings that keep people within the bondage of ignorant repetitive behavior. Those who seek only what pleases them and try to avoid what displeases them are acting in this way because they do not realize the nature of the world.

For those who know the nature of the world, lack of complete satisfaction or fulfillment in things of the world is in itself advice to cultivate detachment. If people do not crave to be pleased, they will not be displeased. What causes mental suffering is not the environment itself but the mind itself.

--Muso Kosushi (1275-1351)