Conversion to Christianity is the religious conversion of a previously non-Christian person to some form of Christianity. It has been called the foundational experience of Christian life. Conversion to Christianity primarily involves belief (faith) in God, repentance of sin, and confession of Jesus Christ as the Son of God. While conversion to Christianity may simply involve a personal choice to identify with Christianity rather than with another religion, many Christians understand it to mean that the individual attains eternal salvation by a genuine conversion experience or act—a "radical transformation of self."