931. This cannot be illustrated in any other way than by comparison with an aura of effluvia emanating from the body, being such that when anything strikes against it, it either repels it, or changes it to agree with its own character or nature. So they themselves do not know that they are like this, and have this effect. All spirits are surrounded with this kind of aura, such as those who frighten, or strike with fear, and the like. Nothing is allowed to enter within that aura that is repugnant, or opposes, unless it is an aura having a stronger action, in which case it causes pain, because the person and the aura make one. However, enlightened knowledge that does not approach with passion is able to enter it, and to be received. 1748, 22 February.