This teaching divides our thoughts, emotions, movements and sensations into four sharply defined groups, each of which is controlled by a separate mind or “center.” In this tutorial, we will explore these four centers, their location in the Micro-cosmos, their peculiarities and their speed of action. We will superimpose these centers onto an image of the Last Judgement as portrayed in a Russian icon, to see their relation to our aim to “Be,” and understand how the Physical Body relates to the Astral Body. And we will use our new knowledge of our Micro-cosmos to observe the many “I” more intelligently, separating them from real “I” by assigning them to each of the Four Lower Centers.