That's very true.
When i was a kid i used to get tonsillitis like every month. One day, my mother took me to some kind of healer, not sure how you would call in English but the kind with damn hot hands lol.
Very gentle and nice man, he did his magic, took the generous amount of money he was asking for his miracle and told us that this sickness thingie was a thing of the past. I was not even 8 years old but i remember very well that man and know what? Never so far did i ever suffer from tonsillitis again. Not a single time in the 34 years from then.
Did that man actually has super powers? I don't think so it but he left me with such an impression that 8 year old me never thought about doubting him. Of course i was cured, Healing Superman said so.
The mind is indeed a wonder.