There are two aspects to the life of each person. We might call them "heart" and "mind," a part of us that wants and feels and a part of us that thinks and knows. The Writings usually refer to these as the "will" and the "understanding." They are reflections, and receptacles, of the Lord's infinite love and infinite wisdom. Of the two, the heart or will is ultimately the most important. Who we actually are is determined by what we love, and the things in our heart ultimately determine our place in heaven (or hell). But the will is beyond our control; we can't force ourselves to want something good or to not want something bad; we can control our actions, but not our feelings. Because of this power, the Lord works subtly and carefully in our hearts, in ways we can't sense. Most of the work and interaction goes on in our minds through the working of what the Writings call "Divine Truth," which is essentially the Lord's entire essence expressed in a form that is compatible with our minds. When the Bible talks about the Lord's "spirit," it represents this operation of Divine Truth in our minds, the way he reaches out and embraces us, and invites us to embrace him back. And when the Bible talks about people having "spirit," it is talking about our minds when we embrace Divine Truth.

40. 'Creeping things which the waters bring forth' means facts which belong to the external man, while 'birds' generally means rational concepts and also intellectual concepts, of which the latter belong to the internal man. That creeping things from the waters, or fish, mean facts is clear in Isaiah,

I came, and there was no man. By My rebuke I will dry up the sea, I will make the rivers a desert. Their fish will stink because there is no water and will die of thirst. I will clothe the heavens with darkness. Isaiah 50:2-3.

[2] This is plainer still in Ezekiel where the Lord describes the new temple, or new Church in general, and the member of the Church, or person who has been regenerated, for every regenerate person is a temple of the Lord,

The Lord Jehovih ¹ said to me, Those waters which will go out to the boundary eastwards will come towards the sea, having been directed into the sea, and the waters will be fresh. And it will be that every living creature which swarms will live, wherever the water of the rivers reaches, and there will be very many fish, for these waters are going there and will become fresh; and everything will live where the river goes. And it will be that fishermen from En-gedi to En-eglaim will stand beside it, with nets spread out. Its fish according to their kinds will be very many, like the fish of the great sea. Ezekiel 47:8-10.

'Fishermen from En-gedi to En-eglaim with their nets stretched out' means people who are to teach the natural man about the truths of faith.

[3] In the Prophets 'birds' invariably means rational concepts and intellectual concepts, as in Isaiah,

Calling a bird of prey from the east, a man of My counsel from a distant land. Isaiah 46:11.

In Jeremiah,

I looked, and behold there was no man, and all the birds of the air ² had fled. Jeremiah 4:25.

In Ezekiel,

I will plant the sprig of a lofty cedar, and it will bring forth a branch, and bear fruit, and it will become a noble cedar, and under it will dwell every bird of every sort, ³ in the shade of its branches they will dwell. Ezekiel 17:23.

And in Hosea, when the subject is a new Church, or regenerate person,

And I will make for them a covenant on that day, with the wild animals of the field, and with the birds of the air, ² and with things moving on the ground. Hosea 2:18.

Anyone may see that because the Lord 'is making a new covenant' with them, 'wild animal' is not used to mean a wild animal, nor 'bird' to mean a bird.

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