For a graceful movement, there should be some regulation or discipline of motion, which is called rhythm. Dancing is thus a further development on sculpture. It is full of life with rhythmical movements of the limbs and expression of emotions in the face. At this stage ideas begin to crystallise in the mind. Then they seek their expression.
Words flow out.
But there should also be some regulation and aptness in the word-structure, in order to properly express one s ideas. Only then will they be easily understood and appealing to the mind. Literature serves this purpose. Now ideas are expressed very well, so as to help the understanding of man, as well as provide an intellectual stimulus and entertainment. A still further development is found in music.