This well-known and popular phrase is far more sinister than you think. At the depth of it, there is a narcissistic worship of the individual. YOU are the center of the universe and what matters most is pleasing Y-O-U. 

The main pursuit in this kind of thinking is personal peace and autonomy. It is the pursuit of everything that pleases you.

And yet, thousands of years ago, the wisest man in the world noted:

“I said to myself, “Come on, let’s try pleasure. Let’s look for the ‘good things’ in life.” But I found that this, too, was meaningless.” (Ecc. 2:1, NLT)

“You do you” ends up being a dead end.  There is however another pursuit that will provide far more meaning and purpose than you ever imagined.