One side of the understanding of the power of the word is to keep in mind that, as a reflector in the form of a globe is needed behind the light in order to throw the light fully, so a reflector is needed for the voice, as every voice-producer knows. The voice-producer will always give exercises to his pupil to repeat over and over again in order to get this reflector into the right condition, so that all the possibility of producing a full voice may be brought out.