The Early Christians were somewhat divided in their beliefs concerning the details of Re-birth. One sect or body held to the idea that the soul of man was eternal, coming from the Father. Also that there were many degrees and kinds of souls, some of which have never incarnated in human bodies but which are living on many planes of life unknown to us, passing from plane to plane, world to world. This sect held that some of these souls had chosen to experiment with life on the physical plane, and were now passing through the various stages of the physical-plane life, with all of its pains and sorrows, being held by the Law of Re-birth until a full experience had been gained, when they would pass out of the circle of influence of the physical plane, and return to their original freedom.
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.