If I may speak my own experience, I find that to keep my eye simply on Christ, as my peace and my life, is by far the hardest part of my calling. It seems easier to deny self in a thousand instances of outward conduct, than in its ceaseless endeavors to act as a principle of righteousness and power

 John Newton (Counterfeit Gods, pg 176)

The man or woman who knows the difference that Newton refers to - the difference between obeying rules of outward conduct rather than setting your heart on Christ as your peace and your life - is on the road to freedom from the counterfeit gods that control us. 

- Tim Keller, Counterfeit Gods, pg 177 - 

"Setting the mind and heart on things above" where "your life is hid with Christ in God" means appreciation, rejoicing and resting in what Jesus has done for you. it entails joyful worship, a sense of God's reality in prayer. Jesus must become more beautiful to your imagination, more attractive to your heart, than your idol. That is what will replace your counterfeit gods. 

- Tim Keller, Counterfeit Gods, pg 172 -