494. Later I learned to what provinces those singing angels belonged, namely that the purer ones, who are angelic, belonged to the pulmonary functions - something I was also allowed to experience, that is, that they controlled my lungs for a while, which was done so gently and pleasantly, and indeed internally, that I scarcely felt any breathing of air. I felt it from the center to the outside, for the lungs act into all parts of the body, the inner and the outer. Besides these there were some who controlled my outer breathing, which I could feel very well, and they are spiritual, and therefore more noticeable.