—Psalm, XVI, II
"THE KINGDOM OF GOD IS WITHIN YOU"
Heaven is in a man; and they who have heaven within themselves, come into heaven. Heaven in a man is to acknowledge the Divine, and to be led by the Divine.
Every angel receives the heaven which is around him according to the heaven which is within him. Unless heaven is within a man, none of the heaven around him flows in and is received.
Love to the Lord is the love regnant in the heavens; for there the Lord is loved above all things. Thus the Lord is All in all there. He flows into all the angels, and into each of them. He disposes them; He induces a likeness of Himself on them, and causes Heaven to be where He is. Hence an angel is heaven in the least form; a society is heaven in a greater form; and all the societies together are heaven in the greatest form.
—Heaven and Hell, nn. 319, 54, 58
AN ACTUAL WORLD
In general, what appears in heaven, appears the same as it does in our material world of three kingdoms. Things appear before the eyes of angels just as objects of the three kingdoms do before the eyes of men in the world. Still there is this difference: the things which appear in heaven, have a spiritual origin, and those which appear in our world a material origin. Objects of a spiritual origin affect the senses of angels because these senses are spiritual, as those of a material origin affect the senses of men, inasmuch as their senses are material. Heavenly objects are said to have a spiritual origin, because they exist from the Divine which proceeds from the Lord as a Sun; and the Divine that proceeds from the Lord as a Sun is spiritual. For there the Sun is not fire, but Divine Love, appearing before the eyes of the angels as the sun of the world does before the eyes of men; and whatever proceeds from the Divine Love is Divine and is spiritual. Of this origin are all things which exist in the heavens, and they appear in forms like those in our world. It is due to the order of creation that they appear in such forms. According to that order, things which are of love and wisdom with the angels, on descending into the lower sphere in which angels are in respect of their bodies and of their sensation, present themselves in such forms and under such types. These are correspondences.
—Apocalypse Explained, n. 926