The nerves and their _ganglia_ are often diseased, when we least suspect: and _calcareous_ and _scrofulous_ tumours, pressing on the _optic axis_, in the brain, or on the _pneumogastric_ nerve above its _recurrent_ branch, and disease in the bronchial glands around the cardiac plexus, may exist, with the very slightest sensations of pain. Even in extreme _disorganization_ of the brain, there may be _remissions_ of painless repose; and in other cases, where _pain_ is _synchronous_ with illusion, the illusion may subside although the pain remains; an indication, or proof, indeed, of _structural_ cause for the phantasy. And this discrimination, Astrophel, of the line of distinction between sanity and derangement, is often of a hair’s breadth; and the law confesses here the high value of pathology, seeing that, in cases of suicide or of idiocy, and other states which involve the rites of sepulture, the conveyance of entailed estates, or personal responsibility, the judgment of the physician is held to be _oracular_. MYSTERIOUS FORMS AND SIGNS. “Fierce fiery warriors fight upon the clouds, In ranks, and squadrons, and right form of war, Which drizzled blood upon the capitol: The noise of battle hurtled in the air.” JULIUS CÆSAR. ASTR. Methinks you claim too much homage from our courtesy to your philosophy, Evelyn. Can we believe that all these wondrous forms and shadows are but an illusion of the eye, or of the mind’s eye? And, if I grant this truth in regard to the eye of _one_ mind, can we so easily libel the evidence of a multitude, to whom the world of shadows is unlocked? We are now wandering in the very land of omens; and will this cold philosophy of thine presume to draw aside the veil of mystery, which hangs over the mountain and the cataract of yon wild principality? E’en now the legends of many climes crowd on my memory; and, while this purple cloud is o’er the sun, listen, I pr’ythee, to the traditions which I have gathered; muse on the _sequences_ of these strange appearances, and you will at length confess, with the Benedictine Calmet—“Realité des apparitions est prouvée par l’événement des choses prédites.” The Tan-we or Tan-wed are streams of lucid fire, rolling along the lands of a freeholder, who, warned of his coming fate, immediately makes his will, and shortly after _dies_.