[1 of 3] Swedenborg (1688-1772, Sweden): primary subject "Profanation" (search under Outer Life/Doctrine, Rites, Scriptures)": source "Apocalypse Explained, vol.5": detail "Section 1047"
As to profanations, they are of many kinds. The most grievous is, when the truths and goods of the Word [Bible], of the church, and of worship, are acknowledged, and the life is in accordance with them, but afterwards are denied, and the life is contrary to them; or even when they are not denied, and yet the life led is contrary to them. This profanation brings about a conjunction and coherence of good with falsity, also of truth with evil; whence it comes to pass that a man is in heaven and in hell at the same time; the consequence of which is, that while heaven wills to have its own, and hell to have its own, and yet they cohere, each is taken away. Hence the man’s own life perishes, and he becomes like a brute animal, raving continually, and is carried away by phantasy on every hand, like a dragon in the air; and who also sees in phantasy flakes and chaff as giants and crowds, and looks upon a small vessel as if it were the universe, and so on. Because such have no longer any human life, therefore they are not called spirits, but somewhat profane, nor are they named “he” or “she,” but “it.” And when they are seen in the light of heaven they seem to be like calcined skeletons.
 But this kind of profanation is rare, since provision is made by the Lord to prevent a man from entering into the faith of truth and into the life of good, unless he can be constantly kept therein even to the last of his life.

[2 of 3] Swedenborg (1688-1772, Sweden): primary subject "Profanation" (search under Outer Life/Doctrine, Rites, Scriptures)": source "Arcana Coelestia, vol.12": detail "Section 10287"
But something shall first be said concerning the conjunction of Divine Truth with those who do not acknowledge the Lord. This conjunction is profanation, which is the conjunction of Divine Truth with falsities from evil; and this conjunction takes place with none but those who have first acknowledged those things which belong to the Church, and especially the Lord, and afterwards deny them; for by the acknowledgement of the truths of the Church and of the Lord, communication with the heavens is effected, and hence the opening of the interiors of man towards heaven; and by denial afterwards the conjunction of the same with falsities from evil is brought about; for all the things which a man acknowledges remain, nothing perishes which has become his own by acknowledgment. The state of the man who is given to profanation is such, that he has communication with the heavens, and at the same time with the hells by means of truths with the heavens, and by means of the falsities of evil with the hells; as a result of this there comes a tearing asunder by which everything of interior life perishes. After this tearing asunder such persons hardly appear like men, but like burnt bones in which there is little life.

[3 of 3] Swedenborg (1688-1772, Sweden): primary subject "Profanation" (search under Outer Life/Doctrine, Rites, Scriptures)": source "Arcana Coelestia, vol.1": detail "Section 301"
The case is this. When men have become inverted orders of life, and are unwilling to live, or to become wise, except from themselves and from their proprium, they reason about every thing they hear respecting faith, as to whether it is so, or not; and as they do this from themselves and from their own things of sense and scientifics, it must needs lead to denial, and, consequently, to blasphemy and profanation, so that at length they do not scruple to mix up profane things with holy. When a man becomes like this, he is so condemned in the other life that there remains for him no hope of salvation. For things mixed up by profanation remain so mixed up, that whenever any idea of something holy presents itself, an idea of something profane that is conjoined with it is also there, the consequence of which is that the person cannot be in any society except one of the damned. Whatever is present in any idea of thought in consequence of being conjoined with it, is most exquisitely perceived in the other life, even by spirits in the world of spirits, and much more so by angelic spirits, so exquisitely indeed that from a single idea they know a person's character. The separation of profane and holy ideas when thus conjoined cannot be effected except by means of such infernal torment that, if a man were aware of it, he would as carefully avoid profanation as he would avoid hell itself.