 This indicates that there are in a sense two aspects of metaphysical perfection. First, metaphysical perfection is constituted by harmony, that is, unity in variety. A situation is harmonious to the extent that a variety of things are ordered in accordance with general laws or principles, such as laws of motion governing terrestrial and celestial objects (PE, “Principles of Nature and Grace, Based on Reason,” §11). Second, that which possesses a degree of metaphysical perfection in the sense of harmony can also be said to be worthy of observation to some extent. If there were nothing ordered in accordance with general laws, there would be nothing worthy of observation because everything would be submerged in chaos. Thus harmony makes something contemplatible, like a painting by the Italian Renaissance artist Raphael (PW, “Codex Iuris Gentium,” p. 171).