Hate poisons your life.
Greed, the desire to incorporate, is magnified and fed back to produce the pretan realms, just as hate creates the hells.
Take the example of people who are being most unrealistic - people who are beating monks to death and torturing them. Why shouldn't you be angry or hate that person? Well, the person who is doing that is very unhappy. They are being ordered by a higher-up.
