Fear is the greatest enemy of action. It paralyzes you, blocks your projects, and fuels anxiety and depression. Learning to identify when it is rational and when it is irrational gives you control over it. It does not disappear, but no longer being at its mercy allows you to make clear decisions and live more freely.
The greatest enemy of love is not hatred, it is fear. It prevents you from loving unconditionally and letting the other person do the same. Recognizing and facing it allows you to build relationships based on freedom and trust, without invisible chains limiting your life.