5549. The angels who are in the spiritual heaven, are not in internals but in externals. That external also is tripartite, namely, into internal, middle and external. The external, which approaches towards the external sensual in the world, is quiescent In the middle degree, they live, as to thought and observation. The internal is like a soul to them. They indeed have the internal which is above, but it is shut up. The communication [of the Lord] with these occurs through the celestial-spiritual heaven, across the celestial. Hence it is that spiritual angels are in the internal of the natural.