The particular provinces to which angelic communities belong can be ascertained in the next life from the positions they occupy in relation to the human body, as well as from the way they act and flow in. For angelic communities flow into and act upon that organ or member in which they are located. But their flowing in and action can be perceived only by those who are in the next life. It cannot be perceived by man unless his interiors have been opened all the way through to that life, and not even then if the Lord does not impart to him the ability to reflect on the sensations he feels and to do so with perception.