This is the very definition of karma, unless you knew that already.
I feel the same way, though I haven't been able to see much of my past lives, really. I need to find some time to try past life regression again. It is supposed to help you learn from your past mistakes...though I suppose what one does with that information is another matter entirely.
I guess that's part of why I haven't tried so hard to find the visions, because I don't know what particular good the knowledge would do me 
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I'll brave the storm to come, for it surely looks like rain...