Look outside yourself for meaning and purpose.
Two guys are walking down the street when a mugger approaches them and demands their money. They both grudgingly pull out their wallets and begin taking out their cash. Just then, one guy turns to the other and hands him a bill. “Say, here’s that $20 I owe you.”
All any of us wants to do is make a difference in the world. Selfishness does not accomplish this.
In a famous story, a young high school girl came to the Lubavitcher Rebbe, Rabbi Menachem Mendel Schneerson, of blessed memory, asking for advice on how to ease her loneliness and acquire more friends. The Rebbe told her that, when it was lunch time in the school cafeteria, she should take her attention off herself, look around the lunch table and ask the girls if anyone needed the salt or pepper, the ketchup or a napkin. In this way, the Rebbe suggested, the other girls would feel important, and in turn, they would be moved to pay attention to her. Once she did as the Rebbe advised, she discovered that many girls expressed an interest in being her friend.
When one stretches out a hand to give to another, a relationship is forged, and the One Above looks down and smiles. That is the kind of world He would like to dwell in.