Poe is a very complicated author. His literary works are perplexed, disturbing, and even grotesque. His frequent illnesses may have provoked his engrossment in such things. In 1842 Dr. John W. Francis diagnosed Poe with sympathetic heart trouble as well as brain congestion. He also noted Poe's inability to withstand stimulants such as drugs and alcohol (Phillips 1508). These factors may have motivated him to write The Tell-Tale-Heart, The Cask of Amontillado, and The Black Cat. All of these stories are written in or around 1843, shortly after Poe became afflicted. His writing helped him to cope with his troubles and explore new territory in literature. Poe's interest in the supernatural, retribution, and perverse cause them to be included in his burial motifs; therefore sustaining his interest. There is a common thread laced through each subject, but there is variation in degrees of the impact. The supernatural is the phenomena of the unexplained. With this comes an aura of mystery and arousal of fear. Death in itself is the supreme mystery. No living human being can be certain of what happens to the soul when one dies. It is because of this uncertainty that death is feared by many. These types of perplexing questions cause a reader to come to a point of indifference within one of Poe's burial motifs. One is uncertain of how the events can unfold, because a greater force dictates them. Reincarnation in The Black Cat is a supernatural force at work. There is some sort of orthodox witchcraft-taking place. The whole story revolves around the cat, Pluto, coming back to avenge its death. One can not be sure how Pluto's rebirth takes place, but it is certain that something of a greater force has taken hold. The cat's appearance is altered when the narrator comes across it the second time. There is a white spot on the chest "by slow degrees, degrees nearly imperceptible…it had, at length, assumed a rigorous distinct outline…of th...