What is Your Darkness?

In his book, The Way of the Warrior, Erwin Raphael McManus challenges the reader to understand their "darkness" and act on it accordingly. What darkness or barriers are preventing you from reaching your goals or being a better person? Here is what McManus says about darkness:

"If your darkness is fear, then fear is what you must face.
If your darkness is bitterness, then it is bitterness that you must confront.
If your darkness is greed, then greed is what you must conquer.
 If your darkness is self-doubt, then here you must find your courage.
If your darkness is anger, then it is here that the battle must rage.
If your darkness is despair, then you must stare it down with hope.
If your darkness is hate, then you must slay it with love."