235. (1) People experience spiritual warmth and spiritual coldness; and spiritual warmth is love, while spiritual coldness is its absence and loss. Spiritual warmth originates from no other source than the sun of the spiritual world. For the sun there is an emanation from the Lord, who is in the midst of it; and being from the Lord, in its essence that sun is pure love. That sun appears to angels as a ball of fire, just as the sun of our world does to men. It appears as a ball of fire because love is spiritual fire. From that sun emanate both heat and light, but because that sun is pure love, the heat from it in its essence is love, and the light from it in its essence is wisdom. This makes clear the origin of spiritual warmth and the fact that it is love. [2] The origin of spiritual coldness, moreover, will also be briefly explained. It originates from the sun of the natural world and its heat and light. The sun of the natural world was created so that its heat and light might receive into them spiritual heat and light and by means of its atmospheres convey them even to the lowest elements in the world. Their purpose was to produce the effects of those ends which, being the Lord's, exist in the spiritual sun, and also to clothe spiritual things with coverings or materials adequate to bring about final ends in nature. This is what happens when spiritual heat is joined to and contained in natural heat. The contrary happens, however, when natural heat is separated from spiritual heat, as is the case in people who love natural things and reject spiritual ones. In them spiritual warmth becomes coldness. These two kinds of heat, by creation in harmony, thus become opposed to each other, and the reason is that the master heat then becomes the servant heat, and the servant heat the master. So, to keep this from happening, spiritual heat withdraws, which by right of its origin is the master; and spiritual warmth in these recipient vessels then grows cold, because it becomes opposed. It is apparent from this what spiritual coldness is - that it is the 3absence and loss of spiritual heat. (In what we have just said, by heat we mean love, because spiritual heat in animate recipients is felt as love.) I have heard in the spiritual world that merely natural spirits experience an intense coldness whenever they attach themselves to the side of some angel who is feeling a state of love. Also that spirits in hell have the same experience whenever warmth from heaven flows in upon them - even though among themselves, when the warmth of heaven is shut off and withdrawn, they burn with great heat.