There is no occasion to suppose deceit in this. It finds its parallel in every race and every age, and rests on a characteristic trait of certain epochs and certain men, which leads them to seek the divine, not in thoughtful contemplation on the laws of the universe and the facts of self-consciousness, but in an entire immolation of the latter, a sinking of their own individuality in that of the spirits whose alliance they seek. This is an outgrowth of that ignoring of the universality of Law, which belongs to the lower stages of enlightenment.[273-1] And as this is never done with impunity, but with iron certainty brings its punishment with it, the study of the mental conditions thus evoked, and the results which follow them, offers a salutary subject of reflection to the theologian as well as the physician. For these examples of nervous pathology are identical in kind, and alike in consequences, whether witnessed in the primitive forests of the New World, among the convulsionists of St. Medard, or in the excited scenes of a religious revival in one of our own churches. Sleeplessness and abstemiousness, carried to the utmost verge of human endurance--seclusion, and the pertinacious fixing of the mind on one subject--obstinate gloating on some morbid fancy, rarely failed to bring about hallucinations with all the garb of reality. Physicians are well aware that the more frequently these diseased conditions of the mind are sought, the more readily they are found. Then, again, they were often induced by intoxicating and narcotic herbs. Tobacco, the maguey, coca; in California the chucuaco; among the Mexicans the snake plant, ollinhiqui or coaxihuitl; and among the southern tribes of our own country the cassine yupon and iris versicolor,[273-2] were used; and, it is even said, were cultivated for this purpose. The seer must work himself up to a prophetic fury, or speechless lie in apparent death before the mind of the gods would be opened to him. Trance and ecstasy were the two avenues he knew to divinity; fasting and seclusion the means employed to discover them. His ideal was of a prophet who dwelt far from men, without need of food, in constant communion with divinity. Such an one, in the legends of the Tupis, resided on a mountain glittering with gold and silver, near the river Uaupe, his only companion a dog, his only occupation dreaming of the gods. When, however, an eclipse was near, his dog would bark; and then, taking the form of a bird, he would fly over the villages, and learn the changes that had taken place.[274-1]