functionality - the act of presenting a play or a bit of music or other amusement; "we congratulated him on his overall performance for the rehearsal"; "an impressed general performance of Mozart's C small concerto" Not like hallucinations, that are sensory activities within the absence of stimuli, an illusion https://tituskqvad.like-blogs.com/35501058/the-single-best-strategy-to-use-for-illusion-of-kundun-mu-online