These verses illustrates the fallacy of the modern teaching “be true to yourself” and “all that you need is within you” or “follow your heart” and etc. Such teachings are simply telling you to do what feels right at the moment, wing it and let the ever changing tied carry you. Which is the best mankind looking inward can do because “the way of man is not in himself” therefore “how can a man then understand his own way?”
Quit looking in and start looking up! Quit trusting in self and start trusting in the Saviour! Christ is called the Good Shepard for a reason! Invite Him into your heart, trust Him with your life and give Him your hand! In so doing, you will find meaning, purpose and direction! Start by looking to Him, not within!