Sacred Scripture # 34
34. It would be the same for the heavens where angels live if it were not for the world where we live. We, as human beings, are their foundation, container, and support, and we have the Word with us and in us.
Overall, the heavens are divided into two kingdoms, which are called the heavenly kingdom and the spiritual kingdom. These two kingdoms are founded upon the earthly kingdom where we live. A similar structure exists in the Word, which we have with us and in us.
See Heaven and Hell 20-28 on the division of the angelic heavens into two kingdoms, a heavenly one and a spiritual one.
Arcana Coelestia # 5560
5560. The communities of spirits to which the cartilages and bones correspond are very many. But they are the kind that have very little spiritual life within them, even as very little life is present in the bones when compared with the softer parts which they encompass, such as the skull and bones belonging to the head when compared with both parts of the brain, the medulla oblongata, and the substances within these that belong to the senses, or, for instance, the vertebrae and ribs when compared with the heart and lungs; and so on.