One of the hardest parts of personal growth is self-awareness. I know of very few people who are completely self-aware, but I know far too many who have no apparent self-awareness at all. This makes personal interactions difficult and also complicates lasting life transformation.
Having self-awareness is having a correct view of who you are. It is what is true about yourself and is the first step for growth and development. Looking introspectively reveals a willingness to confront and change negative behaviors while reinforcing positive interactions and attitudes. This is a growth process which takes a heaping dose of humility as we see things we may not want to see, but need to recognize if we want to grow.
This wasn't always an area of strength for me and while I am far from where I would like to be, I feel I am more cognizant of who I am than I used to be. This has been helped by people who cared enough to tell me the truth and were patient as I worked on improving. It hasn't (isn't) been an easy process, but the consistent work pays off in better relationships and an improved understanding of who I really am moving forward.