My Viewpoint as a Dreamer

We all see dreams, but what are dreams? Our Mc saw dreams about a world. He found his dreams to be too real. One night he went to sleep but when he woke up he was not in his bed, he found himself on an isolated island. Read the journey of a dreamer as he found himself in a world he saw in his dreams. His advantage? He has been dreaming about that world for ten years and he knows about its past, present, and future.