The Messenger of Allaah صلى الله عليه وسلم said, "Be in the world as if you were a stranger or a traveler along a path."  This hadith shows that a believer should have one of two attitudes toward this world. The first is that of a stranger in a strange land. He feels that he is in a place where he does not belong. This is not his home and he cannot feel entirely happy here. His heart can never be tied to this land. Instead, his heart and mind are preoccupied with getting back to his home. His time and his efforts are filled with that purpose. He is spending his time, money and capabilities to gather together what he needs to return to his home. His time is not spent or wasted on entrenching himself deeply in this environment to which he knows that he does not belong.