Since, therefore, so many societies of the world of spirits and of heaven contribute to each single mental image of a person on earth, and of a spirit, it follows that if anything filthy or profane is clinging to the ideas, clean elements are contaminated by unclean and holy ones by profane, and because they are together, they cannot but defile the purer societies, causing them disgust and nausea, so they cannot be in the societies of good spirits, much less of heavenly ones, before the Lord has separated those things, and while they are in the societies, He separates them.