I'm glad that made you smile.

Although I there's the whole existentialist side of looking at things that Venus took the liberty of expanding on a bit, it might maybe be a bit of obsessive thinking mixed with natural fascination with death? It certainly doesn't sound like depression though...do you feel depressed?

I guess it comes down to how much this impacts your life negatively. You said you enjoy it, and if you're not suicidal, I don't think it's that big a deal. I had something similar in my teens (although mixed with being extremely suicidal and just a lot of issues), and as I grew up it lessened a bit but it's still there.

This could also be a time for you to expand your spirituality if you're interested, and read up a bit on different religious and cultural views of it.

Good luck!