In the "True and Fake Monkey King" episode of Journey to the West, Tathagata Buddha used the Five Elements Mountain to suppress the six-eared macaques, but secretly killed the real Sun Wukong. A remnant soul of Wukong was swept into the prehistoric world by the power of chaos, and possessed the body of a good-for-nothing monster monkey with the same name, starting his path to rebirth.
Beautiful and interesting.