STONE

I have no idea how it happened.

I sometimes look into the Reflection to confirm.

Its either I'm invincible or have existed.

Although people appear to look my direction,

 its done in such a way that I'm either transparent or stone.

I have no idea how time passed.

I sometimes look as people pass by to confirm .

Its either I'm ignorance or have died.

Although I realize I have stood in one direction,

commemorating your pass and standing in your future as stone.