Guan Yu ascends to Godhood and protects the people

"I am deeply grateful for the help you gave me. Misfortune has befallen me, and I have ceased to live. I would seek the pure instruction and beg you to indicate the obscure way."
"Let us not discuss former wrongdoings nor present correct actions. Later events are the inevitable result of former causes. I know that Lu Meng has injured you. You call aloud for the return of your head. But who will also return the heads of your several victims---Yan Liang, Wen Chou, and the commanders of the five passes?"
Thereupon Guan Yu seemed suddenly to comprehend, bowed in token of assent, and disappeared. After this appearance to the recluse, his spirit wandered hither and thither about the mountain, manifesting its sacred character and guarding the people.
Impressed by his virtue, the inhabitants built a temple on the Mount of the Jade Spring, wherein they sacrificed at the four seasons. In later days, one wrote a couplet for the temple, the first member reading:
"Ruddy faced, reflecting the honest heart within, out-riding the wind on the Red Hare steed, mindful of the Red Emperor;"
"In the light of clear lamp, reading the histories, resting on the Green-Dragon saber curved as the young moon, heart pure as the azure heaven" (Romance of the Three Kingdoms, Ch 77).