Repentance

Repentance is reviewing one's actions and feeling contrition or regret for past or present wrongdoings, which is accompanied by commitment to and actual actions that show and prove a change for the better.

Islamic concept of repenting to God (Allah) due to performing any sins and misdeeds

aspect of Judaism

critical element of conversion

Xuastvanift is a Manichaean text written in the Uyghur language containing a prayer of repentance. The text is important for understanding the lives of Manichaean communities in the East and confirms many concepts found in other Manichaean, Christian, and Muslim writings. The name Xuastvanift comes from Uyghur and means "confession" or "repentance". This text was widely used by Uyghur Manichaeans and has been preserved in many manuscripts and fragments. It had a possible influence on Buddhist texts of the time.