Gut - your intuition
Balls - courage to take action
Brains - the safe space where we retreat
These three parts of every man, when given the right priority, can lead to a happy and fulfilled life. In the wrong order, it can lead to a mediocre life full of regret and resentment.
When you're listening to your gut, and have the balls to follow through, you're living in alignment with who you are at your core and are a powerful, influential, fulfilled, happy man.
When you allow your brains to retreat from the tough choices or allow them to silence your intuition, you're destined for a unhappiness.