AC 5228 - What is spiritual perception?

AC 5228
... at this day it is wholly unknown what spiritual perception is; and what is unknown does not enter into the apprehension however it may be described; for perception is nothing else than the speech or thought of the angels who are with a person. When this speech or thought flows in, it becomes the perception that a thing is so, or is not so, but only with those who are in the good of love and of charity, for it flows in through good. With these this perception produces thoughts, for to them what is perceptive is the general of thought.