I read your question and it sparked a memory for me. Instead of the usual answer, I went and wrote a story about it. If you want to read it, it's called "Relief" and should be at the top of my list as it's the last thing I wrote.
Out of all of the above, the major event I will list first with a few others as well: 1. Beng Saved and Baptized 2. Miracle of Birth (when told by a Chief of Obstetrics in a very well known hospital that I would never have any children. 3. The initial stage of marriage when vows actually meant something. (Not everyone experiences this)