little lesson.

What we are, then, is entirely dependent on what we think. Therefore, the nobility of man's character is dependent on his"good" thoughts, actions, and words. At the same time, if he embraces degrading thoughts, those thoughts invariably influence him into negative words and actions.
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, nonobjective 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.
In what realm do you now live? If you are hungry for power, love, and self-recognition, you live in the Preta world, or hungry ghosts. If you are motivated only by thirsts of the human organism, you are existing in the world of the beast.
Consider well then your motives and intentions. Remember that man is characteristically placed at the midpoint of the ten stages; he can either lower himself abruptly or gradually into hell or through discipline, cultivation and the awakening of faith rise to the Enlightened state of the Buddha.