They came to light only when it was found that diets apparently perfectly balanced according to pre-existent information did not provide proper nourishment in some cases arid .
The church teaches that man treads a progressive path to perfection: in a pre-existent state as a soul without a body, in the life on earth, and finally in the afterlife.
The church, he wrote, should "no longer speak of a union of the divine and human nature in one pre-existent person.