How does a spiritual entity pass through a door?

A spiritual entity can pass directly through a door or wall as easily as if these did not exist, though not quite so quickly because in passing through a door or wall, a spiritual entity must disunite the different particles of its spirit body and pass through between the molecules of the physical material that is in its way, and then reassemble or unite its spirit body on the other side. 

This requires time, but not nearly so much time, as you might assume. 

In fact, it can be almost instantaneously accomplished. 

Yet, a spiritual entity, as a rule, moves more slowly and leisurely and often uses the larger part of a minute in passing through a door, through which it could pass if necessary in the fractional part of a second.

Benjamin F. Woodcox, Fragments of Spiritual Knowledge Pertaining to the Spiritual World, Woodcox & Fanner, Battle Creek, Michigan, 1923