Siddhis are not real. Don't be afraid, nobody can do anything to you!
Even many educated Westerners are interested in materializing gold and thus fooled by Gurus promising fake powers.
There are no Siddhis or supernatural powers. I challenge anybody to show me those powers and their effect, good or bad. Can you tell me the lottery numbers or can you kill me only by the force of your mind? Try it.
You learn in school how long it takes for light to travel from the sun to us and how much power it takes for a rocket to go to the moon. But still you believe that any man has the power to make gold out of nothing or harm you with his black magic?
I am just a simple person who believes in love and prayers, not in magic.