4404. The external senses, which are five, namely, touch, taste, smell, hearing, and sight, have each of them a correspondence with the internal senses. But at this day correspondences are known to scarcely anyone because it is not known that there are any correspondences, and still less that there is a correspondence of spiritual things with natural, or what is the same, of the things of the internal man with those of the external. As regards the correspondence of the senses, speaking generally the sense of touch corresponds to the affection of good, the sense of taste to the affection of knowing, the sense of smell to the affection of perceiving, the sense of hearing to the affection of learning, and also to obedience, and the sense of sight to the affection of understanding and of being wise.