It also represents an ancestral mark of incest taboo inherited from the ancient clannish society of the Li people.

• 它深藏的伦理考虑和设计已被模糊在宗教、审美乃至现实解说的时间烟尘中，它原本所表达的氏族含义远不似人们认定的那样表面、浅泛。