Faith seems to be used by Christians in two sense or on two levels....In the first sense it means simply Believe - accepting or regarding as true the doctrines of Christianity.  That is fairly simple.  But what does puzzle people - at least it used to puzzle me - is the fact that Christians regard faith in this sense as a virtue.  I used to ask how on earth it can be a virtue - what is there moral or immoral about believing or not believing a set of statements?...What I did not see then - and a good many people do not see still - was this.  I was assuming that if the human mind once accepts a things as true it will automatically go on regarding it as true, until some real reason for reconsidering it turns up.  In fact, I was assuming that the human mind is completely ruled by reason.  But that is not so....