The more your music practice becomes regular, the more real it feels and the more it pays off. Music itself depends on regularly recurring cycles, on periodicity, such as the vibrations of strings and reeds. Consider how the daily rotation of the earth, the monthly orbit of the moon, and their yearly orbit of the sun are also periodic. These motions make a kind of slow-moving music, too deep for our ears. But we sense the music of the spheres because it was the condition of our origin. We are made from this music.