Selection from Arcana Coelestia ~ Emanuel Swedenborg
The Ancient Church was in representatives and significatives.The knowledge of such things was their intelligence and wisdom, and this not only of those who were of the church, but also of those who were out of the church, as is evident from the oldest books of the Gentiles, and from the things which at this day are called fables; for significatives and representatives were derived to them from the Ancient Church.
At the present day these things cannot but appear paradoxical, because, as before said, this knowledge is altogether obsolete and lost. And yet how much this knowledge surpasses other knowledges, may be seen from the fact that without it the Word cannot possibly be known as to its internal sense; and because the angels who are with man perceive the Word according to this sense; and also because by means of this knowledge communication is given to man with heaven. And (what is incredible) the internal man itself thinks in no other way; for when the external man apprehends the Word according to the letter, the internal man apprehends it at the same time according to the internal sense, although the man while living in the body is not aware of this. Especially may this be seen from the fact that when a man comes into the other life and becomes an angel, he knows the internal sense as of himself without instruction.
(excerpt from Arcana Coelestia 4280)