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 the Christian God, wherein one notices that one has fallen short of God's image in what he created man after which was in his love, glory, and holiness, repentance of sin, and confession of their belief that Jesus Christ is the Son of God and the all-sufficient and only means by whom one's sin can be atoned for and therefore the only route to salvation. 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."