Episode VI My radio co-host talks about her ghostly experiences

This interview was recorded a few months ago with Mindy Wills, my co-host on the radio.  Like many, Mindy had some things happen to her when she was younger that peaked her interest in the subject.  Anyone who knows Mindy realizes that she is genuine, humble, & easy going.  What causes someone to be so passionate about a certain subject?  Is it previous experiences?  Or is it just a curious nature in all of us?  Is there another reason?