Self improvement is a popular subject these days. Thousands of new books are written and millions sold on how to improve ourselves. Some teach us how to control our weight. Others teach us how to get a better job or start a new career. Some teach us how to get along with other people regardless of our differences while some teach us to control and manipulate others as if they were toys for us to play with. Some teach us how to exercise and have the will power and stamina to grow large muscles and get an impressive physique. Some may simply teach us how to better care for some part of our environment: our home, our garden, our workplace, etc. There is nothing wrong with any of this, but none of it is really self improvement because none of it is dealing with the Self, our real Self. 
    As I have said before, our real Self is not our job, our body, our mind, or even our ego. Our true self is spirit. So self improvement is great, but don't forget to also so some Self improvement, spiritual improvement, because that is the part of you that is eternal so it is the part you should be most concerned about.