With dancing, one has to be so perfectly in tune with his or her own body as well as his or her fellow dancers, especially if they want to look perfect and professional. This is a great example of just that. Look at all the effort that is being put right there. These dancers are portraying the story of The Origin Of Thousand Hands And Scroll Holding Guan Yin. Because the dancers are so in sync they are able to create an amazing optical illusion of a woman having multiple arms.