COG--I'm not trying to convert you to my way of thinking. I was simply answering Loosie's original question.
It's really a strange thing. I know that my experience changed me forever. I have absolutely no doubts as to its origin. I also don't expect any one else to believe me unless they have experienced something like that. I'm sure it seems incredulous to outsiders.
Keep in mind, something you don't know, I was raped and beaten many years previous to this. No one intervened, no one saved me. But it never occurred to me to be angry with God for sending me to help that little boy when God hadn't saved me years before. You'd think I'd be mad. It just wasn't like that. I guess you had to be there.
For me, it really does go back to free will.
Re: certainty, it's kinda like when I met my husband, I knew he was the one. I find marriage to be very difficult (he's difficult to get along with, LOL!) but I still know, without a doubt, that he's the one and it never occurs to me to leave. The experience with the little boy, I had the same certainty about it. Can't explain. It's just the way it is.
StAnn