Solysiumsoh-lee-zee-uhm

n. The unhinged delirium of being alone for an extended period of time--feeling the hours stretch into days until a weird little culture begins to form inside your head, with its own superstitions and alternate histories and a half-mumbled dialect all your own--whose freewheeling absurdity feels oddly liberating but makes it that much harder to reacclimate to the strictures and ambiguities of normal social life.