I do not quite understanding the instruction for the star exercise on page 20 of the course manual. Specifically, I don't understand what the author meant when he told us to "Stand the course album up between you and the Star to block the line of sight to the Star. Hold the mirror in one hand so that you can see the Star only through the mirror." I am not really sure what I am suppose to do in this exercise. Can anyone rephrase what the course manual had written so that I can understand what I need to do?
Thank you