Another sect held to the more scientific occult form of the gradual evolution of the soul, by repeated rebirth, on the physical plane, from Lower to Higher, as we have set forth in our lessons on "Gnani Yoga." The difference in the teachings arose from the different conceptions of the great leaders, some being influenced by the Jewish Occult Teachings which held to the first above mentioned doctrine, while the second school held to the doctrine taught by the Greek Mystics and the Hindu Occultists. And each interpreted the Inner Teachings by the light of his previous affiliations. And so, some of the early writings speak of "pre-existence," while others speak of repeated "rebirth." But the underlying principle is the same, and in a sense they were both right, as the advanced occultists know full well. The fundamental principle of both conceptions is that the soul comes forth as an emanation from the Father in the shape of Spirit; that the Spirit becomes plunged in the confining sheaths of Matter, and is then known as "a soul," losing for a time its pristine purity; that the soul passes on through rebirth, from lower to higher, gaining fresh experiences at each incarnation; that the advancing soul passes from world to world, returning at last to its home laden with the varied experiences of life and becomes once more pure Spirit. The early Christian Fathers became involved in a bitter controversy with the Greek and Roman philosophers, over the conception held by some of the latter concerning the absurd doctrine of the transmigration of the human soul into the body of an animal. The Fathers of the Church fought this erroneous teaching with great energy, their arguments bringing out forcibly the distinction between the true occult teachings and this erroneous and degenerate perversion in the doctrines of transmigration into animal bodies. This conflict caused a vigorous denunciation of the teachings of the Pythagorean and Platonic schools, which held to the perverted doctrine that a human soul could degenerate into the state of the animal. Among other passages quoted by Origen and Jerome to prove the pre-existence of the soul was that from Jeremiah (1:5): "Before thou comest from the womb I sanctified thee and I ordained thee a prophet." The early writers held that this passage confirmed their particular views regarding the pre-existence of the soul and the possession of certain characteristics and qualities acquired during previous birth, for, they argued, it would be injustice that a man, before birth, be endowed with uncarnal qualities; and that such qualities and ability could justly be the result only of best work and action. They also dwelt upon the prophecy of the return of Elijah, in Malachi 4:5. And also upon the (uncanonical) book "The Wisdom of Solomon," in which Solomon says: "I was a witty child, and had a good Spirit. Yea, rather, being good, I came into a body undefiled."