This is a very serious subject. Perhaps we are afraid to speak about it because of the controversies that once raged between pietism and the orthodoxy of Protestant scholasticism, controversies that have not yet been settled. Let us not forget, however, that even scholasticism spoke of conversion. There is a hymn by Paul Gerhard which runs:

The need for conversion is never forgotten. The only difference between orthodoxy and pietism in this respect concerns the manner in which this need can be met. The claim that is made upon us radically alters our whole life: conversion means a complete reversal. We know from personal experience as well as from the experience of others the feeling of apprehension when someone tries to ‘convert’ us. We may want to avoid a certain house or a particular group of people because we feel: ‘They want to convert me.’ Perhaps that feeling is caused by misunderstanding, for turning to God is joy—that is a fact that is often overlooked when we speak of conversion. But the challenge remains: Be converted.