You don't seem to understand how Bitcoin works: the balance of the address is what has the 'coins'. They dont exist independent of the balance of the address.

You don't seem to understand how Bitcoin works: the balance of the address is what has the 'coins'. They dont exist independent of the balance of the address. So you can't spend them from a different address, without first transferring them to that different address; and that transfer must be publicly announced to the network. It is the public announcement which gives the other address the ability to spend the 'coins'.