People experience anauralia with words lacking voice, rhythm, pitch, or timbre. Anauralia distinguishes silent verbal thinking from voiced inner speech. Yedasentience provides intuitive knowing without words as subjective knowledge feeling. Afantasia and anauralia coexist with non-visual, non-auditory cognition. Individuals lack mental senses like yedavoyance, yedaaudience, yedaalience, yedagustance. Some possess yedatangency, yedasentience, yedacognizance, yedaphonation. Thinking occurs as pure word essence or muscle-memory knowing without sensory qualities. Silent minds plan, rotate 3D shapes via tactile sensing without images. Internal experiences vary with some having hyperendophasia or synesthesia extremes. Dysikonesia classifies lacks across 8 mental senses and 4 intensity variants. Verbal thinking persists via memory of vocal box not eardrum. Conceptual knowing bypasses words for direct action planning. Writing translates silent knowing into words automatically. Some detect all lacks: afantasia, anauralia, anendophasia. Emotional thinking replaces verbal monologue in some. Community refines terms blending science and mysticism for mental perception mapping.