I spotted this egg art earlier and thought it was interesting. Upon further research, I found the pattern is related to Yin and yang, an ancient Chinese philosophy. Even today, there are still a lot of people in China and around the world using the laws of yin yang here and there in the life. My high level understanding is that yin and yang are two opposing states that can be mutually rooted, transformed, and waxed and waned. Yin yang philosophy suggests that balanced yin and yang lead to long term equilibrium. If want to learn more about yin and yang, this wiki page would be a good starting point. If you would like to see more egg arts, visit the following two links. Enjoy!