You've got to prove

As far as I can see, 
there's only love, 
as far as I can tell, 
there's only joy; 
and if by chance I'm wrong, 
then you've got to
prove to me, 
my love you can destroy.
As long as I can breathe, 
there's only you, 
as long as I can speak, 
there's just your name; 
and if by chance I'm gone, 
then you've got to
prove to all, 
You'll still remain, the very same.