The art of living is based on rhythm - on give & take, ebb & flow, light & dark, life & death. By acceptance of all aspects of life, good & bad, right & wrong, yours & mine, the static, defensive life, which is what most people are cursed with, is converted into a dance, 'the dance of life,' metamorphosis.
Cinema is a kind of pan-art. It can use, incorporate, engulf virtually any other art: the novel, poetry, theater, painting, sculpture, dance, music, architecture. Unlike opera, which is a (virtually) frozen art form, the cinema is and has been a fruitfully conservative medium of ideas and styles of emotions.