211. This enables us to conclude what heaven's form is like, namely that it is most perfect of all in the inmost heaven, perfect in the intermediate heaven but less so, and still less so in the heaven below that. We can also conclude that the form of one heaven is maintained by another through the inflow from the Lord.

However, there is no way to understand what communication by inflow is like without knowing what vertical levels are like and what the difference is between these levels and degrees of length and breadth. The nature of both kinds of levels may be seen in 38.