fantasy psychedelic . abstract checkerboard s on black background. digital generated geometric ornament. stylized

abstract artistic background checker checkerboard checkers chequers chess chessboard consciousness creation decor decoration decorative depression design digital disorders drawing fractal fractals geometric geometry hallucination hallucinogenic illustration kaleidoscope kaleidoscopic mental mirage ornament ornamental ornate pattern psychedelic psychotherapy square stairs stylized template therapies treating trippy vector vintage vision wallpaper