And God said, “Let the waters cause the creeping animal—a living soul—to creep out. And let the bird flit over the land, over the face of the expanse of the heavens.” — Genesis 1:20
After the great lights are kindled and placed in the inner self, and the outer self is receiving light from them, the time arrives when we first start to live. Earlier, we can hardly be said to have been alive, thinking as we did that the good we perform and the truth we speak originate in ourselves. On our own we are dead and have nothing but evil and falsity inside, with the result that nothing we produce from ourselves has life. So true is this that by our own power we cannot do anything good—at least not anything inherently good.
From the doctrine taught by faith, anyone can see that we cannot so much as think a good thought or will a good result or consequently do a good deed except through the Lord’s power. After all, in Matthew the Lord says:
The one who sows good seed is the Son of Humankind. (Matthew 13:37)
Good cannot come from anywhere but this same unique source, as he also says:
Nobody is good except the one God. (Luke 18:19)
Still, when the Lord brings us back to life, or regenerates us, he at first allows us to harbor these mistaken ideas. At that stage we cannot view the situation in any other way. Neither can we be led in any other way to believe and then perceive that everything good and true comes from the Lord alone.
As long as our thinking ran along these lines, the truth and goodness we possessed were equated with a tender plant or grass, next with a plant bearing seed, then with a fruit tree, none of which has a living soul. Now, when love and faith have brought us to life and we believe that the Lord brings about all the good we do and the truth we speak, we are compared initially to creeping animals of the water and birds flitting over the land and later to beasts. All these are animate and are called living souls.
from Secrets of Heaven, Volume 1, Section 39