Thanks, Thunder Bow.

Here are some other thoughts.

I also had an association of sticking a silver pin in my brother as trying to kill a vampire, i.e. combining the ideas from folklore that you kill a vampire with a stake through its heart or with a silver bullet. In the dream we are fighting each other equally--however, once I had this association, I think it might be more right to say I was trying to kill my brother, and he was fighting back. What the dream is teaching me is that whatever violence I do to him, he does back. Violence begets violence. Only love and forgiveness can heal. I can't be rid of my brother inside, I can only forgive him.

That further led to me to have an association to traveling to a foreign island as trying to build a new life without my brother. I think I attached to the idea of a peaceful life without conflict, but I think that I tend to see the only way that can happen as if my brother is dead.

The silver pins are seen as valuable by me both in buying this new life and perhaps in killing my brother.

Not all of this resonates equally, but I definitely think that part of me thinks I can only be peaceful if he's out of my life permanently, rather than looking to make peace with him.