90. Since man is both a heaven and a world in least form after the image of the greatest (see above, n. 57), there is in him both a spiritual and a natural world. The interior things that belong to his mind, and that have relation to understanding and will, constitute his spiritual world; while the exterior things that belong to his body, and that have relation to its senses and activities, constitute his natural world. Consequently, everything in his natural world (that is, in his body and its senses and activities), that has its existence from his spiritual world (that is, from his mind and its understanding and will) is called a correspondent. 91. From the human face it can be seen what correspondence is. In a face that has not been taught to dissemble, all the affections of the mind present themselves to view in a natural form, as in their type. This is why the face is called the index of the mind; that is, it is man's spiritual world presented in his natural world. So, too, what pertains to the understanding is presented in speech, and what pertains to the will is presented in the movements of the body. So whatever effects are produced in the body, whether in the face, in speech, or in bodily movements, are called correspondences. 92. All this shows also what the internal man is and what the external, namely, that the internal is what is called the spiritual man, and the external what is called the natural man; also that the one is distinct from the other as heaven is from the world; also that all things that take place and come forth in the external or natural man take place and come forth from the internal or spiritual man. 93. This much has been said about the correspondence of man's internal or spiritual with his external or natural; now the correspondence of the whole heaven with everything pertaining to man shall be treated of. 94. It has been shown that the entire heaven reflects a single man, and that it is in image a man and is therefore called the Greatest Man. It has also been shown that the angelic societies, of which heaven consists, are therefore arranged as the members, organs, and viscera are in man, that is, some are in the head, some in the breast, some in the arms, and some in each of their particulars (see above, n. 59-72); consequently the societies in any member there correspond to the like member in man; those in the head corresponding to the head in man, those in the breast to the breast in man, those in the arms to the arms in man; and so with all the rest. It is from this correspondence that man has permanent existence, for from heaven alone does man have permanent existence.