392. The reason these two motions, the cardiac and the pulmonary, occur and continue is that the entire angelic heaven, both in general and in particular, possesses these two motions of life. The entire angelic heaven possesses them because the Lord infuses them from the sun where He is and which emanates from Him. For that sun engenders these two motions from the Lord. Moreover, because all the constituents of heaven and the world descend in succession from the Lord through that sun in such a nexus and form, like the links of a chain from the first to the lasts of them, and because the life of love and wisdom originates from Him, and all the forces of the universe spring from life, it is apparent that the origin of these motions lies nowhere else. It follows that the varying of these motions occurs in accordance with the reception of love and wisdom.