Paranormal, metaphysical and supernatural experiences

Lets all be honest, you may practice a certain religion but did you have any experience that would make you undeniably believe in the spirit world? All i hear is stories and sometimes from people you wouldnt call crazy. What about mediums, do they speak with unseen entities or they just have high intuition and they may be able to read your mind without any spirit involved? If spirits were real and the so call psychics werent charlatans why they all fail to prove their abilites when they are tested? there is a guy that offered 1 million dollars to anyone who can demonstrate a supernatural or paranormal ability under agreed-upon scientific testing criteria and yet no one was able to pass the test. Yet today even if we leave in a highly orthologic society people still believe, so many celebrities and people in high places are into occult are they all crazy?