I just joined a few minutes ago because of this post and thread! My son, now 8, has been asking me "I don't know why I am me" and "I don't why I am here ... what's my purpose?" for a couple of years (maybe since 6). I am so thankful to find others that are experiencing such intensity in a small child. Unlike your little girl, (I think) he has made many statements about wanting to die. We finally made the decision to take him to a psychologist who officially declared him gifted, but at risk for major depression. He is now in Cognitive Behavioral Therapy for positive self-talk practice. As for the philosophical questions, I started asking him to repeat his thoughts so that I could write them down because "there is probably no one else out there thinking these very unique ideas" and when we discover the answers - he could possibly share them with the world. He seems take comfort in that approach. Of course, I still don't have the answers. And I probably never will. But... maybe our kids will someday??!!Thanks so much for posting this - I really did think we were the only ones out here with these "different" thoughts!