The importance of five senses has already been noted and the catastrophic loss of either one of them is considered to be a great problem. Losing an arm or leg in an accident is far better than losing eyesight and hearing. When you lose your arm, you can still walk, talk, see and hear. So does, when you lose your leg. However, the most devastating incapacitation is the sensory loss like the loss of eyesight and hearing. Just like eyesight, hearing is very important as well to make individual appreciate sound, voice and music. Otherwise, they are all mute, never exist. Hearing is also important to make anyone respond to the stimuli like responding to the call, understanding verbal instructions and so on.
