687. Such being the nature of heaven, no angel or spirit can have any life unless he is in some society, and thereby in a harmony of many. A society is nothing but a harmony of many, for no one has any life separate from the life of others. Indeed no angel, or spirit, or society can have any life (that is, be affected by good, exercise will, be affected by truth, or think), unless there is a conjunction thereof through many of his society with heaven and with the world of spirits. And it is the same with the human race: no man, no matter who and what he may be, can live (that is, be affected by good, exercise will, be affected by truth, or think), unless in like manner he is conjoined with heaven through the angels who are with him, and with the world of spirits, nay, with hell, through the spirits that are with him. For every man while living in the body is in some society of spirits and of angels, though entirely unaware of it. And if he were not conjoined with heaven and with the world of spirits through the society in which he is, he could not live a moment. The case in this respect is the same as it is with the human body, any portion of which that is not conjoined with the rest by means of fibers and vessels, and thus by means of functions, is not a part of the body, but is instantly separated and rejected, as having no vitality. The very societies in and with which men have been during the life of the body, are shown them when they come into the other life. And when, after the life of the body, they come into their society, they come into their veriest life which they had in the body, and from this life begin a new life; and so according to their life which they have lived in the body they either go down into hell, or are raised up into heaven.