The man was created to be an understanding of truth, and the woman to be
an affection for good; and thus the man to be a truth, and the woman to
be a good. When understanding of truth which is in the man makes one
with the affection for good which is in the woman, there is a
conjunction of the two minds into one. This conjunction is the
spiritual marriage from which marriage love descends. For when two minds
are so conjoined as to be one mind there is love between them; and when
this love, which is the love of spiritual marriage, descends into the
body it becomes the love of natural marriage. That this is so anyone
can clearly perceive if he will. A married pair who interiorly or in
respect to their minds love each other mutually and reciprocally also
love each other mutually and reciprocally in respect to their bodies.
It is well known that all love descends into the body from an affection
of the mind, and that apart from such an origin no love exists.

Since then the origin of marriage love is the marriage of good and
truth, which marriage in its essence is heaven, it is clear that the
origin of the love of adultery is a marriage of evil and falsity, which
in its essence is hell. Heaven is a marriage because all who are in the
heavens are in a marriage of good and truth; and hell is adultery
because all who are in the hells are in a marriage of evil and falsity.
From this it follows that marriage and adultery are as opposite as
heaven and hell are. (A.E., n. 983.)

Man was so created as to be spiritual and celestial love, and thus an
image and likeness of God. Spiritual love, which is a love for truth,
is an image of God; and celestial love, which is a love for good, is a
likeness of God. All angels in the third heaven are likenesses of God;
and all angels in the second heaven are images of God. Man can become
the love which is an image or likeness of God only by a marriage of good