As you can tell by my screen name, I am Catholic, LOL. I read that for the first time when I was 28 (2001). Words cannot describe how much that letter changed my life and my perspective for the better. At least a couple of my kids probably would not be here today if my thinking had not been changed.
I read it just a coupla years ago, so to me it was prophetic. Definitely God speaking to us all. I was born the year it was written.