A kodama that shows itself stands between 8 and 14 inches tall and has no actual weight to speak of. Kodama cannot speak, but they can understand all languages. They can understand even unspoken languages and detect surface thoughts. Despite their incorporealness, kodama often interact passively with their environment as if they were semi-solid (i.e. sitting, walking over, or standing on surfaces), although they also have the ability to slip through them.