This idea reflects the perception that humans are not the same, and they are always evolving, no matter if physically or emotionally. Human's perception related to the world is always changing, creating new things, expressing their feelings in different ways, trough different sounds. As said by Heraclitus, a pre-Socratic Ionian Greek philosopher, nothing in nature is static, it is always moving.
Yes, because you can use aspects of math to improve your artwork. For example, if you were trying to create a perfect square for a piece of artwork, it would be hard to do without math.
