Do evil spirits—Satan, the devil, and demons—really exist?
The existence of spirits, whether good or evil, cannot be determined by human physical senses. By their very nature, spirits are outside the medium of material existence and cannot be seen, felt, smelled, heard, or tasted. One needs to think of spirits as more than immaterial beings. They are active and powerful forces that can influence the course of human events and natural history. Good spirits cause beneficial things to happen and evil spirits bring about bad things. Whether or not you actually believe in the existence of evil or good spirits will be determined, to no small degree, by your religious faith.