In the good providence of the Lord, we have men who, by education, diligent investigation, and careful observation, are most admirably adapted to give the needed instruction--physicians. Let physicians arm themselves with true doctrines, with the spiritual sense of the Word, with the Science of Correspondences and a knowledge of natural sciences, and they will be able to combat the prevailing evils as no other men can; and they should lead in all the great necessary reforms of this age that have regard to physical health, life, and morals. In almost every society of our Churches of any size will be found one or more medical men who have devoted their lives to the study of anatomy, physiology, the causes of disease, diseases and their cure, and the effects of poisons and the bad habits of dress, and other habits injurious to health; and they are able to speak with authority in regard to the prevailing evils of life, which are so destructive to our race. These men, thus providentially prepared, should be called into the field as lecturers. There is not a religious society which does not actually need the services of such teachers; and we can send no other missionaries to those outside of our church organizations who will, to the same extent, command their attention and respect. In order that the body with its environment may be a fit dwelling place for the Spirit, there are provided-- "_Uses for sustaining the body_, comprising its nourishment, clothing, habitation, recreation and enjoyment, protection and conservation of state. The uses created for the nourishment of the body comprise all things of the vegetable kingdom which are good for food and drink; fruits, berries, seeds, pulse, and herbs; all things of the animal kingdom which serve for meat, oxen, cows, calves, deer, sheep, kids, goats, lambs; not to mention milk; also fowls and fish of many kinds." (D. L. W. 331.) "Good uses," says Swedenborg, "are from the Lord, and evil uses are from hell. Evil uses were not created by the Lord, but they originated together with hell." (D. L. W. 336.) Among the evil uses he enumerates all kinds of poisons--in a word, "all things that do hurt and kill men." (_Ibid_. 339.) Here, then, is a criterion by which we must judge of the suitability of any article for nourishing and supplying the wants of our natural bodies. It should be evident to every one that substances which have their origin from hell, which, when used as we use legitimate articles of food and drink, seriously endanger, hurt, and kill men, should never be used for such purpose.