In the case of natural objects, this order is comprised by both the internal organization of an object to suit its overall goal and the part that the particular object plays in nature as a whole. In the “Main Principles,” Mendelssohn goes beyond this formalistic characterization of perfection and offers a more concrete list of the kinds of things that count as perfections in objects, whether objects in nature enjoyed in their own right or objects in nature enjoyed through the artistic depiction of them, which provide “the first level of satisfaction and dissatisfaction which alternately accompany all our representations.” Here he says that