Ancient Egypt focused a lot on duality; even the country was split into Upper & lower Egypt & each had their respective deities. For most of Egypt's history the story of the battle between the gods Set & Horus remained pretty similar & each god was in a way, a mirror image of the other. Horus symbolized the good- light,harmony while Set represented the darker side-the outer boundaries,chaos,storms,etc. This painting pays homage to these 2 incredibly important deities. By splitting the painting in half & showing parts of their respective natures it also shows what life is all about- you can't have good without the bad and vice versa.