Faith comes from fear and ignorance of human nature. Humans do not know why that happens in nature it occurs? Who is doing because the phenomenon occurs, so no action. And more important than it is. Because of the nature of human beings to the maximum possible. Fear had happened and the concept of the unseen in nature. Which was later called "ghost" or "spirit" spirit or soul is intangible. But humans believe can aspire to such a scene. Up with power, such as the disappearance of the human spirit. Or how good and evil, and so numerous.