He only wishes there were something that would heal the scars in his mind, which he can still feel. He sees his mind now as an archipelago of islands that he labors to build bridges between - and while he's had great success engineering the most spectacular of bridges, he suspects there are some islands that he'll never reach.
Neal Shusterman (2012). “Unwind Unboxed: Unwind; UnStrung: an Unwind story; UnWholly”, p.739, Simon and Schuster