The Undertaker had to confront "a number of demons" to get closer to God.
The WWE legend - whose real name is Mark Calaway - has opened up about his journey in faith and explained how he was "scared of the rejection" having not lived a "religious life" for many years.
He told Sorted magazine: "I believed in God but didn't invest in a religious life because I was too scared of the rejection.
"I was one of those people going through life ready to sweep my sins and my crimes under the carpet because I was too afraid to lay them out on the floor.
"It's like when you don't ask out that beautiful girl because the prospect of being shunned is too great and too damaging. It's less damaging to not ask, just like for me, it was less damaging to believe from a distance.
"I knew investing in God meant arresting a number of demons and having to come to terms with things I had done in the past, and that's a bigger fear, as a person, that I ever had in the ring."
The so-called Phenom officially retired from wrestling after his 'Boneyard Match' against AJ Styles at 'WrestleMania 36' in 2020, and he was inducted into the WWE Hall of Fame earlier this month as one of the most respected names in the business.
He pondered: "The respect in wrestling doesn't come from the ring, believe it or not - it's more about how you carry yourself outside the ring.
"It's to do with how you treat other people, how you interact with them and licence that's given.
"There is enough anger and aggression floating about the place when the lights go up - you don't need it in the everyday interactions as well!"
Meanwhile, Undertaker was brought back into the church by his wife and fellow WWE star Michelle McCool - with whom he has kids Kaia and Kolt - and he is glad with the path his life has taken.
He added: 'I feel good. I feel happy, happier than I ever have done in my life. I have some way to go, but I have already gone further than I ever felt possible.'