633. The situation is this: No understanding of truth or will for good resides with anyone, not even with those who belonged to the Most Ancient Church. When people become celestial however, they do seem to have a will for good and an understanding of truth residing with them.
But in reality it is the Lord's alone, a fact they also know, acknowledge, and perceive, as is the case also with angels. This is so true that a person who does not know, acknowledge, and perceive it has no understanding of truth and will for good whatever. With every man, and with every angel, even the most celestial, his proprium is nothing but falsity and evil, for it is well known that in the Lord's eyes even the heavens are not pure,a and that all good and all truth are the Lord's alone. But to the extent that any man or angel is capable of being perfected, he is in the Lord's Divine mercy perfected, and receives so to speak an understanding of truth and a will for good. His own possession of them however is only the appearance. Everybody is capable of being perfected, and consequently of receiving this gift of the Lord's mercy, in so far as the deeds he actually performs in life will allow, and in a manner consistent with the hereditary evil implanted within him from parents.