I'm invincible

It's hard to be invincible
I know nothing can hurt me
not physically anyway
not in any dimension
It's hard to do though
none can know
I can't tell
they will test me
they will hate me
I can protect them
I can help them
but they want to find out
they are so curious
they will hate me for it
not because of that
but because I'm different
I'm invincible