understanding that hears through the ear; consequently hearing is predicated also of attention and giving heed, which pertain to the understanding. The appearance is that the nose smells, and the tongue tastes but it is the understanding that smells and also tastes by virtue of its perception; therefore smelling and tasting are predicated also of perception. So in other cases. The sources of all these are love and wisdom; from which it can be seen that these two make the life of man. 364. Everyone sees that the understanding is the receptacle of wisdom, but few see that the will is the receptacle of love. This is because the will does not act at all by itself, but only through the understanding; also because the love of the will, in passing over into the wisdom of the understanding, is first changed into affection, and thus passes over; and affection is not perceived except by something pleasant in thinking, speaking, and acting, which is not noticed. Still it is evident that love is from the will, for the reason that everyone wills what he loves, and does not will what he does not love. 365. (2) The life of man in its first principles is in the brains, and in its derivatives in the body. In first principles means in its firsts, and in derivatives means in what is brought forth and formed from its firsts. By life in first principles is meant will and understanding. These two are what are in their first principles in the brains, and in their derivatives in the body. It is evident that the first principles or firsts of life are in the brains: (1) From the feeling itself; since man perceives, when he exerts his mind and thinks, that he thinks in the brain. He draws in as it were the sight of the eye, contracts the forehead, and perceives the mental process to be within, especially inside the forehead and somewhat above it. (2) From man's formation in the womb; in that the brain or head is first developed, and continues for some time larger than the body. (3) In that the head is above and the body below; and it is according to order for the higher to act upon the lower, and not the reverse. (4) In that, when the brain is injured in the womb or by a wound or by disease, or by excessive application, thought is weakened and sometimes the mind becomes deranged. (5) In that all the external senses of the body sight, hearing, smell, and taste, with touch (the universal sense) as also speech, are in the front part of the head, which is called the face, and communicate immediately through fibers with the brains, and derive therefrom their sensitive and active life. (6) It is from this that affections, which are of love, appear imaged forth in the face, and that thoughts, which are of wisdom, are revealed in a kind of sparkle of the eyes.