I found these words from Piper to be convicting in that they reveal my all-too-idolatrous heart—my tendency to enjoy the gifts of God more than God the Giver:
The critical question for our generation—and for every generation—is this: If you could have heaven, with no sickness, and with all the friends you ever had on earth, and all the food you ever liked, and all the leisure activities you ever enjoyed, and all the natural beauties you ever saw, all the physical pleasures you ever tasted, and no human conflict or any natural disasters, could you be satisfied with heaven, if Christ was not there?