There’s something to be said about knowing where you came from and knowing where you are headed.
You have to know where you came from to know who you are, what made you who you are, and how that made you who you are. This tells you what your strengths and weaknesses have been, and currently are. Self-awareness of the past and present is half the battle.
You have to know where you are headed to know who you want to be, what will make you who you want to be, and how it will make you who you want to be. This tells you what your strengths should be, and what weaknesses need to be addressed. Self-awareness for the future is the other half of the battle.