I have similar thoughts. When you don't know yourself, you're already halfway to living an astray life. Not knowing yourself will result in a lack of focus, no goals to strive for, and you may feel as if you are a time traveler in this world, waiting for the clock to stop ticking and come to a halt forever.

A man who knows himself will live a straightforward life, knowing what to do and what not to do at any given time. A sense of direction promotes improved mental wellness and greater commitment to long-term goals. This is to say that without knowing yourself, you can't have a life direction, and without a life direction, there will be no goals to think about, let alone want to achieve the goal.