Here is the lead-in paragraph of an article I like....
"Honesty is vital to making effective changes and identifying who you really are and what you really want. When you lie about who you are or what you really believe, you reinforce the idea that you need to pretend to be someone else or that you are not fundamentally "good enough". Worse you undermine virtually every other key principle for self improvement because they are based on the premise that you have identified your authentic self and your goals. This is impossible to achieve if you are denying or deceiving yourself. Without the truth of who you are and what you really want, you cannot have clarity in life and you cannot achieve your dreams because you have no true direction."
I underlined the word "true", because of it's importance. Want to read more? Go here.