I have said several times before that heaven or the universal
human is divided into countless communities,
equaling overall the number of organs and viscera in the
body, and that each community relates to one of them.
Although the communities are numerous and varied,
they still act as one, just as all the parts of the body do,
despite their differences. The communities that belong to
the realm of the heart are heavenly ones and stand in the
middle, at the core, while those that belong to the realm of
the lungs are spiritual and stand around the edges, on the
outside. The Lord acts through the heavenly ones on the
spiritual, or through the middle on the edges; he moves
through the core toward the outside. The reason is that he
acts through love, or mercy, which is the source of everything
heavenly in his kingdom, and what he acts on
through love and mercy is the goodness taught by faith,
which is the source of everything spiritual in his kingdom.
His inflow brings with it indescribable variety, yet
the variety results not from his inflow but from its reception.
—Secrets of Heaven 3890