There are three temperaments in astrology – Angelic, Human, and Demonic. If you find that yours or your friend's Moon falls in a Demonic constellation, don't run to exorcists. Vedic temperaments have nothing to do with terms of modern religion. Today, we are more interested in human psychology. We want to know why do we act, feel and think in a certain way, and how we communicate with others. The ability to predict human behavior, and understand our own, seems to make us feel safe and more in control.
The underlying philosophy behind temperaments is Vedic, from the Slavic word "Veda" which translates as "knowledge." Temperaments are related to the karmic past. Angels have the least karmic baggage. They are glorified souls who build truth with honest simplicity. Demonic karma is complex, but when people of such temperament rise above dirt and sorrow, we can witness the strength and willfulness of their amazing personalities. A human temperament is somewhat in between, working its way through life with its ups and downs. "Humans" are the most adaptable, progressive and easy going.