605. A regenerate person, that is, one who is renewed in will and understanding, enjoys the heat of heaven, which is its love, together with the light of heaven, which is its wisdom, while in the contrary case one who is not regenerate experiences the heat of hell which is its love, together with the darkness of hell which is its madness; this is a fact which at the present time is known but still ignored. The reason is that the church as it exists at the present time has made regeneration an adjunct to its faith, and faith something which must not be subjected to reason, and consequently the same applies to anything belonging to its adjunct; and, as I said before, this includes regeneration and renewal. For them these, together with faith itself, are like a house with its doors and windows shut, so that no one knows what is in the house, whether it is merely empty or full of genii from hell or of angels from heaven. A second reason is that confusion has been introduced by the fallacy that a person can by his understanding climb almost into the light of heaven, and use his resulting intelligence to think and talk about spiritual matters, irrespective of what the love of his will is like. Ignorance of the truth about this has also prevented everything to do with regeneration and renewal being known.