Switch - How to Change Things When Change is Hard by Chip and Dan Heath.
You have the power to unite the two by g.
In order to effect Change successfully, you must make an impact on both parts.
This heart-mind dichotomy is represented by an emotional side, which you can consider to be your Elephant and a rational side: your Rider.
Your propensity to bring about Change in your life is dependent on you first changing your behaviors, even When the heart and mind do not agree.
Switch - How to Change Things When Change is Hard by Chip and Dan Heath