Bai Zhuoyu is blind.
When he was sixteen years old, his family was wiped out and he was picked out of the dead by a man. The man took him to become a disciple, taught him how to survive, arranged everything and then disappeared without a trace.
Later, he cultivated Taoism and could see the world with his spiritual consciousness, but he could never find any trace of that person.
Later, the master died, the senior sister ascended the throne, and the world returned to peace.
He met many people and witnessed their stories. People came and went, people gathered and dispersed. He still remembered it, that was enough.
Concept: "A person has been destroyed and saved; later he forgets this, but still instinctively bends down to pick up the broken things - this is the way the gods truly wake up."