Can someone explain this quote to me?

Can someone explain this quote for me?

• I'm suppose to explain this quote and say whether i agree or disagree. i can't do the last part if i can figure out what is the deeper meaning of this quote. i get that its saying if we don't know who we are and what's our purpose then we won't move on in life and we'll say at an immature state but what else is it trying to say? Bernard Lievegoed Who am I? What do I want? What am I capable of? The individual who has failed to ask these questions in this phase of life—even if only by realizing that he suffers from not knowing the answers—has failed to lay the foundations for the awakening of his psychological being, so that he runs the risk in the important middle phase of his life of finding himself stuck at the passionately vital stage, an eternal adolescent who in his appreciation of values remains dependent on what the world thinks of him, or who, on account of his own insecurity, continues to kick against the world.

• Answer:

  Sound like its a blueprint showing the way to becoming the eternal pessimist...