What does the flag outside the Mongolian herdsmen's home mean?

The Chinese name is Lumafengqi, and the Mongolian name is "Hey Muer", which means Ma Jixiang of hope. Only people in Ordos have this flag. Genghis Khan came to Ordos, held it high, and destroyed Xixia with a bow and arrow. Genghis Khan was later buried in Ordos. In order to commemorate him, ordinary people copied his flag and weapons and erected them in front of their own houses. On holidays, the road is formed. Now the deer, horse and phoenix are made by Lamaism.