And then again there is a fourth belief. That belief is a belief of conviction, which stands above reason. The conviction in man is not discovered for some time in life; but there comes a time when it is discovered; and that is a blessed day. Then there arises an idea, an idea which no reason can break, a feeling which is not a passing feeling but is a conviction. However high the idea may be, one seems to be an eyewitness of that idea; one is as strong, as confident, as a person who has seen with his own eyes. One can be convinced of ideas so subtle that they cannot even be expressed in words, and one is more convinced of them than if one had seen them with one's own eyes. It is this belief which is called by the Sufis and Persian mystics Iman, which means conviction.