Arcana Coelestia #12
12. The sixth state is when he utters truths and performs good deeds from faith and consequently from love. What he brings forth at this point are called a living creature and a beast. And because at this point he starts to act from faith and also simultaneously from love, he becomes a spiritual man, who is called an image. The spiritual life of that man finds its delight in, and is sustained by, the things which are associated with cognitions of faith and with charitable acts, which are called his food; and his natural life finds its delight in, and is sustained by, those which belong to the body and the senses. The latter give rise to conflict until love rules and he becomes a celestial man.
Mark 4:26-28
26
And he said, So is the kingdom of God, as if a man should cast seed into the ground;
27
And should sleep, and rise night and day, and the seed should spring and grow up, he knoweth not how.
28
For the earth bringeth forth fruit of herself; first the blade, then the ear, after that the full corn in the ear.