Proof..

My chest rises as I suck in air...
I see myself breathing...
I have to believe that I am alive..
There is no other proof for this..
Is breathing alone proof that I live?
Can I really say that there is life in this body...
I ask you for proof...
I need a proof...
Is my breath of any value to you?
Prove to me, I exist..
Like a planet faraway, with water...
Should I presume there is life?
Is my breath not but water in that planet...