The Island of Destiny

As you continue to walk through the jungle, you hear a strange voice coming from somewhere.

"Oy, you shouldn't be going this way mate. This way will lead you to certain death. Try going west."

What was that!? You instantly look around, searching for any living soul who could have spoken. But your eyes return nothing to you and you are left wondering whether it was just your mind playing tricks on you.

But then you hear "Look matey, this isn't a trick! Now heed what I say and go west!"

"Who's there?" you shout out. You haven't even begun to consider how this person knew what you were thinking.

"Listen, I'm in your head okay? I am Admiral Brokeshine of her Majesty's royal navy. I don't know exactly how but somehow I've wound up in your soul."

"M-my soul?" you stutter. "How did that happen?"

"Listen I'll tell you whatever you want to know. But first order of business is this: Turn around and go west NOW!"

This guy(?) is being awfully demanding but is he right? Should you do what he says or just keep walking on your away?