One of My Lies

When I was younger I thought the world circled around me
But in time I realized I was wrong
My immortal thoughts turned into just dreams of a dead future 
It was a tragic case of my reality
Do you think you're indestructable
And no one can touch you
Well I think you're disposeable
And it's time you knew the truth
Cause it's just one of my lies!
Why does my life have to be so small?
Yet death is forever
And does forever have a life to call its own?
Don't give me an answer cause you
Only know as much as I know
Unless you're been there once
Well I hardly think so
I used to pray all night
Before I lay myself down
My mother said it was right
Her mother said it too...
Why?