It seems to be very symbolic. The three 'spheres' appear to have 'cog-like' designs. Hinting that the movement of any of the three individual cogs will influence the movement of the other two. The central sphere appears like the largest of the three individual 'entities' ... yet it's movement could still be influenced by the other two smaller individual entities ...Mmm ... the question is, the creator of this circle, is it human or 'non-human' ... ??
