Studies in Islam and the Middle East, vol.1, pp.1-10, 2012 (Peer-Reviewed Journal)
This article emphasises that faith provides a internal peace and calmness in the believers' spıritual world. The word iman already expresses reliance and composure. The article, analyzes the the effect of belief in internal world according to verses and commentaries which made by intellectuals of İslam. It is touched on in some places that depression as a result of incredulity in their spıritual worlds.