(re the bold text) Some mediums are clairaudient - they 'hear' (not using their ears though) what their communicator is saying to them. With such mediums it's an approximation of verbal communication. Some mediums are clairvoyant which means they see (but not with their physical eyes) the communicator and hence can offer a description of the communicator's appearance. For me one of the least satisfactory versions of evidential mediumship is the kind where symbols and impressions are the means of communicating with the medium. Too much is open to mis-perception and mis-translation. But one has to go with what's available and finding a reputable medium of any flavor can be hard enough. Asking for additional information is reasonable in my view, information that can be evaluated by the receiver because ONLY the receiver matters.