He did not believe that humans are violent because they enjoy violence. Or that they lie, cheat, and steal because they enjoy doing it. As long as we are motivated to satisfy these cravings, we are moving towards growth, toward self-actualization. Satisfying needs is healthy, blocking gratification makes us sick or evil. Else, we become sick.
Needs are prepotent.
A prepotent need is one that has the greatest influence over our actions. Everyone has a prepotent need, but that need will vary among individuals. As one desire is satisfied, another pops up to take its place. Physiological Needs Physiological needs are the very basic needs such as air, water, food, sleep, sex, etc. When these are not satisfied we may feel sickness, irritation, pain, discomfort, etc.