Time Is Endless

Do you ever think about time?
I'm not talking about checking the time or putting a time of some event you go to.
I do wonder and question about it sometimes, especially when you are a being that cannot die. What am I?
Reborn country why reborn, let's say I pick up where my brother left off.
Why is there a thing called time when you can't die?

(Read the story to find out)
(Haven't wrote anything for years, might be bad)