977. THE INTERNAL SENSE
The subject here being the regenerate person, let a brief discussion follow of the nature of a person who is regenerate in contrast to someone who is not. From this contrast the nature of each one may be known. With the regenerate person there is a conscience concerning what is good and true. From conscience he does what is good and from conscience thinks what is true. The good he does is the good of charity, and the truth he thinks is the truth of faith. With one who is not regenerate there is no conscience. If there is any it is not a conscience about doing good stemming from charity or for thinking truth deriving from faith. Instead it derives from some love involving self or the world, and is therefore a conscience that is false, or not genuine. With the regenerate person there is joy in performing anything according to conscience but anxiety when compelled to perform or think anything contrary to it, which is not the case with someone who is not regenerate. Most people do not know what conscience is, still less what performing anything according to conscience or contrary to conscience is. They know only of performing it in accordance with things favouring their own loves, which for them is the source of joy, while acting contrary to those things brings them anxiety.
 With the regenerate person there is a new will and a new understanding. This new will and new understanding are his conscience - that is, they comprise his conscience, by means of which the Lord works the good that stems from charity, and the truth of faith. With someone who is not regenerate there is no will but instead evil desire, and a resulting inclination towards all that is evil. Nor is there any understanding, only reasoning and a resulting decline into all that is false. With the regenerate person there is celestial and spiritual life, but with someone who is not regenerate only bodily and worldly life. Man's ability to think and to understand what good and truth are comes from the Lord's life by way of remnants, mentioned previously. And this also gives him the ability to reflect.
 With the regenerate person the internal man is master and the external the servant, but with someone who is not regenerate the external man is master, and the internal remains quiescent as though non-existent. The regenerate person knows, or is capable of knowing if he reflects on the matter, what the internal man is and what the external, whereas someone who is not regenerate is totally ignorant on the subject. Nor is he capable of knowing even if he did reflect on the matter, for he does not know what the good and truth of faith deriving from charity are. These contrasts show the nature of a person who is regenerate and of someone who is not, and that the difference between them is like that of summer and winter, or of bright light and thick darkness. Consequently the regenerate is a living man, while the unregenerate is a dead man.