Here is a great article from LiveScience.com about magic mushrooms and how they have the ability to erase fear in mice tested in the laboratory. I would assume that mushrooms can also do this for people and has many other soul awakening benefits.
Mice given an electric shock, then a low-dose of the hallucinogen psilocybin, lost their fearful response to a sound associated with a painful electric shock much more quickly than mice that didn't receive the drug.
"They stopped freezing; they lost their fear," said study co-author Dr. Juan Sanchez-Ramos, a professor of movement disorders at the University of South Florida.
The findings, published in the June issue of the journal Experimental Brain Research, only apply to mice, but they raise the possibility that low doses of the chemical could one day be used to treat post-traumatic stress disorder (PTSD).
Past studies found that psilocybin, the active ingredient in magic mushrooms, could induce mystical experiences that could elevate mood, attitude, and behavior and even permanently alter personality for the better. Other studies show that psilocybin decreases brain activity. [Trippy Tales: The History of 8 Hallucinogens]
But Sanchez-Ramos and his colleagues wondered about psilocybin's role in the formation of short-term memories. Because the ingredient binds to a receptor in the brain that stimulates new brain cell growth and short-term memory formation, the researchers wanted to investigate how it affected the formation of fearful memories. They expected that psilocybin would help mice form frightening memories more quickly.