115. Still, there is no understanding how the Lord is in an angel and an angel is in the Lord except through knowing what kind of union is involved. It is a union of the Lord with the angel and of the angel with the Lord, so it is a reciprocal union. On the angel's side, it is like this. Angels, like us, simply feel as though they participate in love and wisdom on their own, and therefore that love and wisdom are theirs, their very own. If they did not feel this way there would be no union, so the Lord would not be in them, nor they in the Lord. It cannot happen that the Lord is in any angels or people unless they, as subjects of his presence in love and wisdom, sense and feel this as their own. This enables them not only to accept but also to retain what they have accepted, and to love in response. This, then, is how angels become wise and remain wise. Can people decide to love God and their neighbor, can people decide to gain wisdom, unless they feel and sense that what they love, learn, and gain is their own? Can they retain anything in themselves otherwise? If it were not for this, then the inflowing love and wisdom would have no seat. They would flow right through without making any difference; and as a result angels would not be angels and people would not be human. They would be virtually lifeless.

It makes sense, then, that if there is to be union, there must be reciprocity.

52. The reason marriages in heaven do not result in the begetting of children, but that instead they experience a spiritual procreation, which is one of love and wisdom - the reason is that in the case of people who are in the spiritual world, a third element is missing, which is the natural element. This element is the containing vessel of spiritual things, and spiritual things without their containing vessel do not assume fixed form like those that are produced in the natural world. Also, regarded in themselves, spiritual things relate to love and wisdom. Consequently, it is spiritual things that are born of their marriages.

We say that these are born, because conjugial love perfects an angel, since it unites him with his partner so that he becomes more and more human. For, as we said above, married couples in heaven are not two but one angel. Therefore by the conjugial union they fulfill themselves in respect to their humanity, which is to want to be wise and to love what has to do with wisdom.