For a person to pass off their interpretation as what the piece is really saying to a person who hasn't seen the work, or a person who is incapable of seeing it-a blind person, is wrong. It is highly unlikely that one can. Emotion, through language, is inexpressible. This demonstrates, once again, that language can't capture experience, the experience of emotion, only this time language may even fail to communicate an understanding of the experience. Often enough language creates misunderstandings.
Many times there is a confusion about the meaning of what a person is saying.
People say things they don't mean, mean things they don't say, say too much, and babble on. Actions almost always speak louder than words. A person can say that they love someone but if their actions don't demonstrate love then there will be doubt as to whether or not the love truly does exist. Sometimes language can't convey understanding, many times there are not words for understanding. Understanding is also an experience and like all experiences, understanding can't be communicated all the time.