"The sign of idolatry is always inordinate anxiety, inordinate anger, inordinate discouragement. Idols are good things (family, achievement, work and career, romance, talent, etc.) that we turn into ultimate things in order to get the significance and joy we need. Then they drive us to the ground because we have to have them. If we lose a good thing, it makes us sad. If we lose an idol, it devastates us."
--Tim Keller