Diagnosing our heart idols is a crucial step in the Gospel Story, because if we do not see how our hearts are feeding on the wrong things we cannot find the sustaining nourishment of God.
Claiming to be wise, they became fools, and exchanged the glory of the immortal God for images resembling mortal man and birds and animals and creeping things. Therefore God gave them up in the lusts of their hearts to impurity, to the dishonoring of their bodies among themselves, because they exchanged the truth about God for a lie and worshiped and served the creature rather than the Creator, who is blessed forever! Amen. ~Romans 1:22-24
Most of us, in our culture, feed one of these three idols