448. We are, moreover, endowed with all the beauty, loveliness, and vivacity of youth, and are clothed in flowing vestments of effulgent nature suited to the particular degree of refinement of our bodies. Our raiment being composed of phosphorescent principles, we have the power of attracting and absorbing or reflecting the rays evolved, according as our condition is more or less developed. This accounts for our being seen, by clairvoyants, in different degrees of brightness, from a dusky hue to the most intensely brilliant light. 449. The spiritual body is a perfect human form, originating in, and analogous to, the corporeal organization in its several parts, functions, and relations. The heart beats in rythmic pulsations, the lungs fulfil their office of respiration, and the brain generates its vitalized magnetic fluid, whose life-giving currents permeate every portion of the spiritual organism. Man in the rudimental state is tripartite, consisting of soul, of spirit, and flesh; but in the spheres a duality, composed of soul and spirit. Having approached the portals of death, he disrobes himself of the exterior form as he would put away a worn-out garment. The gross and cumbrous physical machine, which was given for the purpose of developing his more beautiful and excellent spiritual body, and of bringing him into more immediate relationship with the outward world, can serve his purposes no longer. 450. For your clearer understanding of the _modus operandi_ of our intercourse with man, you will remember that by our transition to the world of spirits we part with the body only. We lose none of our intelligence by the transfer, but, on the contrary, become daily more and more developed in our knowledge of and power over the forces in nature; so that we are enabled to perform many feats to you, seemingly wonderful, and which really appear miraculous to the majority of those who witness them. 451. Having disposed of the external mechanism of flesh, we cannot come into direct contact with physical matter, but we are able, through the sphere of the medium, when natural conditions are complied with, not only to communicate our thoughts and wishes to our friends, but to move solid, ponderable bodies. By spheres, I mean the particular mental or physical state, or emanation by which all bodies, organic or inorganic, are immediately surrounded, and the particular electrical relations which they sustain to each other, causing repulsions and attractions in man and animals as well as in chemical reagents.