To be "born again."
The creation of the soul as taught by Jesus to Nicodemus:
There was a man of the Pharisees, named Nicodemus, a ruler of the Jews:
The same came to Jesus by night, and said unto him, Rabbi, we know that thou art a teacher come from God: for no man can do these miracles that thou doest, except God be with him.
Jesus answered and said unto him, Verily, verily, I say unto thee, Except a man be born again, he cannot see the kingdom of God.
Nicodemus saith unto him, How can a man be born when he is old? can he enter the second time into his mother’s womb, and be born?
Jesus answered, Verily, verily, I say unto thee, Except a man be born of water and of the Spirit, he cannot enter into the kingdom of God.
That which is born of the flesh is flesh; and that which is born of the Spirit is spirit. - John 3:1-6
"In Gnosticism and esotericism, one understands that the fabrication of the solar bodies and the incarnation of the Being are known as the Second Birth." - Samael Aun Weor, The Esoteric Treatise of Hermetic Astrology
"No one can reach the Second Birth, be reborn again (as it stated in the Gospel of the Lord), as long as they continue living with the psychology of the inferior, common, everyday humanoid." - Samael Aun Weor, The Great Rebellion