The student realizes that the animal sacrifices are those of the celestial zodiac, and that when the Ram or the Bull was offered upon the altar, it represented the qualities in man which come through Aries, the celestial Ram, and Taurus, the Bull in the zodiac. In other-words, the Initiate, passing through his tests and purification, is offering upon the altar of his own higher being the lower animal instincts and desires within himself.