I'm very glad this post could be a little window of value to you.

I think if there's no need to go back into the past, it's because we've already dealt with it and are moving on. If we find something in the present which re-engages and re-triggers the negative emotions of the past, then we are still stuck in the loop and, as you said, fear is keeping is trapped there. I prefer to dive right in and clean it all out. But maybe that's just what works for me. I think each approach is completely unique which further complicates trying to figure it out by listening to someone else. :)