What does it mean to draw the body of the Jianghu spiritual master Li Bai Dengfeng Chongyang?

Baidu has said

The body of Chongyang is the body that returns to the sun after death. To put it bluntly, it can't be killed and can't be reborn after death.

In the latest episode, Master Black Bow said that he couldn't stay and climb the wind, which proved that there must be some secrets hidden in the body of Chongyang, and it was even more powerful than the spiritual disciples. Therefore, in order to further understand the body of Chongyang, we must continue to see spiritual masters on the rivers and lakes.

Chongyang should be opposite to the supreme yin, and the black bow probably passed on the skill to Dengfeng.