30. The Lord's heaven in the natural world is called the Church; and an angel of this heaven is a man of the Church who is conjoined to the Lord; and after he leaves this world he becomes an angel of the spiritual heaven. From this it is clear that what has been said of the angelic heaven must also be understood of the human heaven that is called the Church. This reciprocal conjunction with the Lord, which constitutes heaven in man, is revealed by the Lord in these words in John:
Abide in me, and I in you. He that abideth in me, and I in him, the same bringeth forth much fruit: for without me ye can do nothing. John xv. 4, 5, 7.