5856. Communications of societies with other societies are effected through spirits whom they send forth and through whom they speak. These spirits are called Subjects. When any society was present with me, I could not know it until they sent forth a spirit, at the sending of whom communication was at once opened. This is a very familiar thing in the other life and is frequently done. From this it may be seen that the spirits and angels who are with man, are for the sake of communication with societies in hell and with societies in heaven.