What is the meaning of Shu Eight Immortals in the Seven Immortals Drink of Jiushi Bamboo Forest?

The six books of Chinese characters are pictographic, referential, phonological, comprehensible, annotated and borrowed.

The nine strokes of calligraphy are putting pen to paper, turning pen, hiding peak, hiding head, protecting tail, punching, sweeping pen, astringent, horizontal balance and vertical pen.

Seven sages of bamboo forest Ji Kang, Liu Ling, Ruan Ji, Dan Tao, Ruan Xian, Xiang Xiu and Wang Rong.

Li Bai, He, Li, Li Wei, Cui Zongzhi, Zhang Xu, Jiao Baxian Rong Chenggong, Li Er, Dong Chushu, Zhang Daoling, Li Babai, Fan Changsheng and Mr. Jules.