Magi were priests of ancient Persia, and the promoters of the wisdom of Zoroaster. It's thought that they belonged to the Median race, and according to Schiegel, "they were not so much a hereditary sacerdotal caste as an order or association, divided into various and successive ranks and grades, such as existed in the mysteries - the grade of apprenticeship - that of mastership-that of perfect mastership".
In summary, the Magi were magicians or wise men, and their name translates to 'wise'. The Magi can be divided into three groups, those that would not eat meat at all, those who would eat any form of meat and those who would not eat meat from tame animals. The cases of abstinence stemmed for their firm belief in the transmigration of the soul, and they were believers in the science of divination. They met regularly in their temples to practice it, and they claimed that the main object of their study was truth. They represented the sky as a representation of the Deity, and banned all images of god as a male or female. They also made sacrifices at the top of mountains to the sun, moon, earth, fire, water and winds.