The Daoist Equal to Heaven had been brought back from the World of Heavenly Demons by Wusheng using the Demon-avoiding Divine Shuttle, and this trip triggered a Heart Tribulation. Far from being disadvantaged, it actually turned out to be quite beneficial.
Therefore, having attained Supreme Right Enlightenment through this Heart Tribulation, and having transformed a million Heavenly Demons, what's more, among them was a Heavenly Demon King. This Heavenly Demon King was a master of the Mixed Yuan Golden Immortal First Layer, nearly equal in rank to Bodhisattvas like Guanyin! However, this Heavenly Demon King was definitely no match for a Buddhist sect Mixed Yuan Golden Immortal, as their methods were too overwhelmingly restrained.