“Can these higher bodies of man be in any way affected by the food which enters into the physical body with which they are so closely connected? Assuredly they can, and for this reason. The physical matter in man is in close touch with the astral and mental matter – so much so that each is to a great extent a counterpart of the other. There are many types and degrees of density among astral matter, for example, so that it is possible for one man to have an astral body built of coarse and gross particles, while another may have one which is much more delicate and refined. As the astral body is the vehicle of the emotions, passions and sensations, it follows that the man whose astral body is of the grosser type will be chiefly amenable to the grosser varieties of passion and emotion; whereas the man who has a finer astral body will find that its particles most readily vibrate in response to higher and more refined emotions and aspirations. The man therefore who builds gross and undesirable matter into his physical body is thereby drawing into his astral body matter of a coarse and unpleasant type as its counterpart.
We all know that on the physical plane the effect of over-indulgence in dead flesh is to produce a coarse gross appearance in the man. That does not mean that it is only the physical body which is in an unlovely condition; it means also that those parts of the man which are invisible to our ordinary sight, the astral and the mental bodies, are not in good condition either. Thus a man who is building himself a gross and impure physical body is building for himself at the same time coarse and unclean astral and mental bodies as well. That is visible at once to the eye of the developed clairvoyant. The man who learns to see these higher vehicles sees at once the effects on the higher bodies produced by impurity in the lower; he sees at once the difference between the man who feeds his physical vehicle with pure food and the man who puts into it this loathsome decaying flesh.”
- Charles Webster Leadbeater