@USArmyParatrooper
I believe it is indeed repeatable, but it will fail just for one reason. It would be going against atheism, i guess? Atheism is defined as the lack of faith/belief in a deity(s). I was not necessarily an atheist at that time. I believed in the possibility of every occurrence as dictated by scientific probability. I knew God was not proven, neither disproven, so that's what made me try this experiment.
The only seemingly possible way for me to disprove God was by through that. I had to "repent from all my sins, accept Him as the savior, with a humble heart and leave my life in His hands, knowing that He has the best plan for it." I also had to believe that he exists, otherwise it wouldn't have worked.
I tried this 2 times.
1st time - It was due to the lack of faith that made me fail it. I knew in my heart that I did not proceed according to what it said. I started to feel like this was silly, and unworthy of doing. But I had to be fair: I didn't follow the rules exactly, and hence I was not shown the Light.
2nd time - Took me a year to think about trying again. I got to know a little bit more about the Bible, and how everything worked. This time it was Real. I begged God to reveal Himself to me, and I "knew" He existed. I found myself in silent prayer. After completion, I felt it. I cannot describe it in words. It's a weird form of energy that I've never experienced before. I understood at the end, that my will should align with His will, so that I could be shown the Light.

What are you talking about? Of course God heals! Remember how in the 1700s he healed cowpox? Or polio in 1954?
Oh... wait a second....
The people who discovered the cures were Christian.
That doesn't matter because it was them who cured, not God.
Exactly. It is statistically probable that my plumber is Christian, but nobody claims god fixed my pipes.
Can I get God's number? My house is damaged and I need a washing machine to be installed.