The prefrontal cortex has been associated with a number of functions including:
-Balance your body
-Attunement as when you look at someone and feel connected to them
-Emotional balance
-Response flexibility
-Calm fear
-Insight as self-awareness
-Empathy
-Morality
-Intuition as receiving important signals from heart and gut etc.
But most significantly, it does these things due to our unique ability as human beings to time-travel, to imagine and simulate experiences of the past and future.