Arcana Coelestia #134
134. Once he has been brought into a state of the proprium therefore, a proprium is granted to him, which is described as his rib that was built into a woman, verses 21-23.
Genesis 2:21-23
21
Yahweh God caused a deep sleep to fall on the man, and he slept; and he took one of his ribs, and closed up the flesh in its place.
22
He made the rib, which Yahweh God had taken from the man, into a woman, and brought her to the man.
23
The man said, "This is now bone of my bones, and flesh of my flesh. She will be called 'woman,' because she was taken out of man."