What is the reflective round mirror in the middle of the lion's head?

The reflector in the middle of the lion's head is the front mirror.

The reflective round mirror in the middle of the lion's head, usually called the "forehead mirror", has the function of exorcising evil spirits and receiving happiness. In the lion wake-up performance, the lion dancers will show the magnificent lion form through various movements. Lion dance, also known as Ruishi, originated in Foshan, Guangdong, with a history of 1000 years. "Wake up the lion" means to wake up in Cantonese, which means to wake up the country and people, wake up the lion, wake up the soul of China, and beat drums to boost the spirit.