Without creativity, combat today would be limited to only punching. These individuals did not fear to expand upon what combat may ultimately be. Creativity can only be obtained through freedom of the mind. Freedom allows the mind to express its colors beyond black and white thinking. Freedom allows the mind to dance and let it's natural curiousity override.
Freedom allows conventional modes of thought to be challenged and broken.
Children often demonstrate much in the way of creativity and imagination. This is caused by their free-flowing minds. Their minds are not bound by rules as they express themselves simply, honestly and directly. However, children often lack the ability to concentrate and focus their creative energies. Therefore they lack the necessary structure to channel themselves properly.