52. The Natural Memory, which is that of the External Man; and the Spiritual Memory, which is that of the Internal Man. Man has two memories, an exterior and an interior, that is, a natural and a spiritual memory, nos. 2469-2494. The man does not know that he has an interior memory, nos. 2470, 2471. How much the interior memory excels the exterior memory, no. 2473. The things which are in the exterior memory are in natural light, but the things which are in the interior memory, are in spiritual light, no. 5212. It is by virtue of the interior memory that a man is able to think and speak intellectually and rationally, no. 9394. Each and all things which a man has thought, spoken, and done, and which he has heard and seen, are inscribed on his interior memory, nos. 2474, 7398. That memory is a man's book of life, nos. 2474, 9386, 9841, 10505. In the interior memory are [the truths] that have become the subjects of faith, and the goods that have become the subjects of love, nos. 5212, 8067. The things which have become habitual, and have become matters of life, are in the interior memory, nos. 9394, 9723, 9841. Scientifics and knowledges belong to the exterior memory, nos. 5212, 9922; they are very much in the shade and confused, when compared with those things which belong to the interior memory, no. 2831. Man in the world speaks languages from the exterior memory, nos. 2472, 2476. Spirits and angels speak from the interior memory, and in consequence thereof have a universal language, which is of such a character that all from whatever earth they may be, can converse together, nos. 2472, 2476, 2490, 2493; concerning this language, see the work on Heaven and Hell, nos. 234-245; and concerning the wonderful things of the interior memory which remain with man after death, see no. 463, Ibid.