6610. As long as a person lives the ideas constituting his thought Undergo variation; that is to say, they multiply and divide, and by doing this they spread to different kinds of communities and to new ones. In the case of people who are under the influence of evil those ideas spread to communities in hell, as the ideas likewise do in the case of those subject to persuasive arguments upholding what is false. In the case however of those subject to persuasive arguments upholding what is true, which is persuasive faith. the ideas constituting thought are exceedingly restricted. But in the case of those who are being regenerated the thoughts and affections are constantly being introduced into new heavenly communities, and the spread of them increases. Also the thoughts and affections which already exist divide, and when they have divided they become linked to ideas which are again communicated to new communities. In particular general truths are filled in with particular aspects, and these with specific details, thus with new truths which provide increasing enlightenment.