I agree with the statement made about Christy Brown in the movie My Left Foot.  Daniel Day Lewis, in an impressive depiction of the struggles of Christy Brown, shows the pain of a very bright mind and emotions locked in a very dysfunctional body.  Several scenes show the pain Christy goes through.  One is when he has to blow out the birthday candles on his cake which takes him three tries. The contortions his body must go through to participate in both the birthday party and the neighborhood soccer game where he scores a goal make the audience understand how Christy's pain is both physical and emotional as he tries to participate with a body which won't obey his mind. The impact is most obvious in  the restaurant scene where he realizes that his love for his teacher Eileen is not returned in the way he hopes as she is to marry another man.  He literally speaks aloud in pain with the entire restaurant watching. To put yourself in his place would be to experience the pain of helpless emotion.