When we look at a child, we see that sense of fullness, of intrinsic aliveness, of joy in being, is not the result of something else. There is value in just being oneself, it is not because of something one does or doesn't do. It is there in the beginning, when we are children, but slowly it gets lost.
Imagination builds the image of the self, and thought then functions within its shadows. From this self-concept grows the conflict between what is and what should be, the conflict in duality.
One can be deceived by three types of laziness: of indolence, which is the wish to procrastinate; the laziness of inferiority, which is doubting your capabilities; and the laziness that is attachment to negative actions, or putting great effort into non-virtue.
True self-esteem is realizing that you are valuable because you were born. No matter where you came from, what color your skin is, what people say about your family or what mean things people may have done to you, because you were born, you are important and you matter.
If we choose an external marker as the measure of our inner worth, whether it is the amount of money we make, or others' opinion of us, or the success of some project we're involved in, sooner or later we're bound to be battered by life's inevitable changes. After all, money comes and goes, and thus is an unstable source of self-esteem, an unreliable foundation upon which to build our identity.
Every time you suppress some part of yourself or allow others to play you small, you are in essence ignoring the owner's manual your creator gave you and destroying your design.