The greatest good is contentment and serenity. Self-mastery of one's desires and emotions leads to spiritual peace. If a person can anger you at will, you have no control of your internal world, and therefore no freedom. Rationally accept things you cannot change, such as losing loved ones or material possessions. Difficult problems in life should be embraced, as they function as workout for the spirit. Sexual desires threatens man's integrity and equilibrium of mind, and should be avoided. Abstinence is highly desirable.