My Husband (a Catholic)was able to tour the Vatican years ago when his submarine was in Naples. He said that when you walk into the Sistine chapel you can’t talk. literally can’t talk because it is so awesome. He was with two agangers who he described as close to atheists as they would admit but they were struck too.
This is a bucket list item for me. Just to feel it. It must be amazing and I am so unworthy.