I really appreciate hearing about everyone's experiences with the existential stuff. DD often does this and it can be hard for other people to understand.

For example, when DD first really registered that people could be unhappy enough to commit suicide, she got very worried that one day she could become that unhappy. So it's not that she was unhappy, but that she was worried that the state existed and could somehow come to her at some point. We focus on dealing with the anxiety rather than worrying about the having a preteen thinking about suicide. Of course we had the 'do all things die' walk when she was, oh, 3ish? So we're getting better at coping. Certainly the parenting books are of no help.

She also says things like "we are all connected because all the atoms in my body touch other atoms that touch the atoms in your body..." that sort of thing.