5489. 'Each man's in his own sack' means wherever a receptacle exists in the natural. This is clear from the meaning of 'a sack' as a receptacle, dealt with below; and this exists in the natural because truths and factual knowledge in the natural are the subject. The reason 'a sack' has the specific meaning here of factual knowledge is that just as a sack is a receptacle for grain, so is factual knowledge a receptacle for good, in this case for good that is the product of truth, as above in 5487. Few people know that factual knowledge is a receptacle for good because few stop to reflect on such matters. Yet they can know it from the following considerations: When facts enter the memory some affection is always instrumental in their introduction there. Facts that are not introduced by means of some affection do not remain but slip away. The reason for this is that life is present within an affection but not within factual knowledge except through an affection. From this it is evident that linked to factual knowledge there are always those kinds of impulses that belong to an affection, or what amounts to the same, that are the expressions of some love or other. Consequently it has some form of good linked to it, for every expression of love is called a form of good, whether it is real good or what is mistakenly thought to be such. Factual knowledge together with such forms of good therefore constitute a kind of marriage. This being so, when that good is stimulated, so instantly is the factual knowledge to which it is linked; and conversely, when facts are called to mind, the good to which they are linked comes forth. Anyone can learn of this, if he so pleases, from what goes on within himself.

[2] From this one may now conclude that, among unregenerate persons who have cast aside the good of charity, facts existing as truths known to the Church have the kinds of impulses expressing self-love and love of the world attached to them. Thus attached to those facts there are forms of evil which, because of the delight these hold within them, are called forms of good by those unregenerate persons, who also employ wrong interpretations to present them as such. Those facts take on an attractive appearance, when self-love and love of the world reign throughout, assuming it in the degree in which these are reigning. But among regenerate persons facts existing as truths known to the Church have the kinds of impulses that belong to love towards the neighbour and love to God, thus forms of genuine good, attached to them. These forms of good are placed by the Lord within the truths known to the Church that are present with all undergoing regeneration. Therefore when the Lord inspires these people with a zeal for what is good, those truths come forth at the same time in their own proper order; and when He inspires a zeal for truth, that good is present and sets it ablaze. From all this one may see the situation so far as factual knowledge and truths are concerned - that they are the receptacles for good.