2146. 'As the day was getting warmer' means generated by love. This is clear from the meaning in the internal sense of 'warmth' as love. And because the word warmth is used either of the day or of the year, love is represented either by the warm part of the day or by the warm part of the year, depending on what is mentioned in the historical narratives. That 'warmth' means love becomes clear from the fact that love is called spiritual warmth and by the fact that even in everyday speech a person's whole affection is meant by his increasing warmness. The same is further clear from the fact that love and its affections show themselves as a type of warmth in man's interiors, and also in his exteriors, and even in his actual bodily parts. Indeed that warmth has no other origin in a person when it is flowing out from his interiors. But as is the nature of the love, so is that of the warmth. Celestial love and spiritual love are what produce genuine warmth. Every other kind of warmth - namely that generated by self-love and love of the world, and so by other filthy loves - is unclean and turns in the next life into excrement, see 1773. Furthermore it should be realized that the expression holiness cannot be used except of love and charity and cannot be used of faith except insofar as love or charity are present within the truths of faith. But for that presence in them the truths of faith are not holy at all. See what has been stated already in 2049.

1773. Spirits who during their lifetime have taken joyous delight in the Word of the Lord possess in the next life a certain joyous heavenly warmth, which too I have been allowed to feel. The warmth of those who had some measure of this delight was communicated to me. It was like the heat of spring-time. Starting in the region of the lips, it spread into the cheeks; from there it spread to the ears and also went up to the eyes, as well as down towards the central region of the breast.

[2] The warmth which was communicated to me of those who had taken even greater delight in the Word of the Lord and its inner contents which the Lord Himself had taught was more interior. Starting in the breast, it went up from there towards the chin, and also down towards the loins. The warmth of those who have taken still greater delight in it and have been stirred by still greater affection for it was even more inwardly delightful and spring-like. Beginning indeed in the loins it rose upwards towards the breast, and from there it spread by way of the left arm to the hands. I was informed by the angels that this is what actually happens and that when those spirits draw near, such varieties of warmth are felt, though the spirits themselves do not feel them because they are within them, just as infants, children, and young people do not usually feel their own warmth - which they possess in greater measure than adults and elderly persons, because they are within that warmth.

[3] I have also felt the warmth of those who, it is true, have taken delight in the Word but who have not been anxious to have an understanding of it. This warmth was confined to the right arm. As regards such warmth, evil spirits as well are able by their devices to produce a warmth which counterfeits delight and which they can communicate to others. But it is a purely external warmth having no origin in things that are internal. This warmth is such as cools off and becomes something utterly disgusting, as does the warmth of adulterers and that of people who have become engrossed in filthy pleasures.