And God said, “Let us make a human in our image, after our likeness; and these will rule over the fish of the sea and over the bird in the heavens, and over the beast, and over all the earth, and over every creeping animal that creeps on the earth.” — Genesis 1:26
As long as we are spiritual, we rule the outer self first and from this the inner, as illustrated here in Genesis 1:26.
When we become heavenly, though, and do good because we love to, we rule the inner self first and from it the outer. The Lord describes this as being true of himself; and as it is true of him, it is also true of the heavenly type of person, who is a likeness of him. The words appear in David:
You have made him rule over the works of your hands; all things you have put under his feet: the flock and all the herds, and also the animals of the fields, the bird in the heavens, and the fish of the sea—that which travels the paths of the seas. (Psalms 8:6–8)
In this passage, animals receive the first mention, next the bird, then the fish of the sea, because the heavenly person proceeds from love, which belongs to the will. Things are different with the spiritual person, for whom the fish and birds come first and the animals follow; fish and birds are associated with the intellect, which concerns itself with faith.
from Secrets of Heaven, Volume 1, Section 52