What is a cosmos? Why may a human being be considered a cosmos? And what are the implications of this special status? In this tutorial we see that one of the important implications of this status is that we can learn by seeing ourselves reflected in other cosmoses. This echoes the ancient saying of “As above so below” and “As within so without.” We draw from the Biblical creation of man as depicted in the mosaics of San Marco in Venice, and highlight a particular nuance in the creation that is often overlooked. And we set an aim to learn more about ourselves through studying the behavior of others.