Drawing these small circles is a tranquil activity. My hand knows the form so well that I can enter a state of flow. Mihaly Csikszentmihalyi coined the term 'flow' as a psychological term and has written extensively on his research in this area which falls within the realm of positive psychology. Finding flow is "an intrinsically rewarding or optimal state that results from intense engagement with daily activities". It can also be described as being in the zone and Csikszentmihalyi says that when we are in a state of flow our performance is at it's highest. This can happen if you're free to totally concentrate on the task.
So, though these tiny circles appear to be a lot of work and certainly did take time to draw over consecutive days, the process of doing had the same effect on my mind as meditation.