Ten Realms of Being

Traditionally, Buddhism teaches the existence of the ten realms of being. At the top is Buddha and the scale descends as follows: Bodhisattva (an enlightened being destined to be a Buddha, but purposely remaining on earth to teach others), Pratyeka Buddha (a Buddha for himself), Sravka (direct disciple of Buddha), heavenly beings (superhuman [angels?]), human beings, Asura (fighting spirits), beasts, Preta (hungry ghosts), and depraved men (hellish beings).

Now, these ten realms may be viewed as unfixed, non-objective worlds, as mental and spiritual states of mind. These states of mind are created by men's thoughts, actions, and words. In other words, psychological states. These ten realms are "mutually immanent and mutually inclusive, each one having in it the remaining nine realms." For example, the realm of human beings has all the other nine states (from hell to Buddhahood). Man is at the same time capable of real selfishness, creating his own hell, or is truly compassionate, reflecting the compassion of Amida Buddha. Buddhas too have the other nine realms in their minds, for how can a Buddha possibly save those in hell if he himself does not identify with their suffering and guide them to enlightenment.