"In that day ye shall know, that . . . ye are in Me and I in you. He
that hath My commandments and doeth them, he it is that loveth Me; . . .
and I will love him" (xiv. 20, 21).

The reciprocality is that such are in the Lord and the Lord is in them,
also that whoever loves the Lord, the Lord also will love him. "To have
His commandments" is to be in truths, and "to do them" is to be in good.

Reciprocality is also described by the Lord in His union with the
Father, in these words,

"Philip, . . . How sayest thou, Show us the Father? Believest thou not
that I am in the Father and the Father in Me? . . . Believe Me, that I
am in the Father and the Father in Me" (John xiv. 9-11).

From this reciprocal union of the Divine and the Human in the Lord the
reciprocal union of Divine good and Divine truth goes forth; and this
goes forth from the Lord's Divine love; and the same is true of the
Lord's reciprocal union with heaven and the church, and in general the
reciprocal union of good and truth in an angel of heaven and in a man of
the church. And as good is of charity and truth is of faith, and as
charity and faith make the church, it follows that the church is in a
man when there is a reciprocal union of charity and faith in him.
Again, as good is of the will and truth is of the understanding, and as
the will and understanding make man, it follows that a man is a man
according to the union of the will and all things belonging to it with
the understanding and all things belonging to it, and this reciprocally.
This union is what is called marriage, which from creation is in every
particular of heaven and in every particular of the world; and from this
is the production and the generation of all things. That in every