All Knowing Nothing

"I know" is a very strong statement.  We use it everyday, and sometimes multiple times a day.  Someone tells you the something that you believe you already "know" and our response is "I know".  So what is it exactly we know.  The answer we tell ourselves is practically everything.  We know it all. But do we?  I am struggling with this concept because like I said, I'm trying to familiarize myself with living in the "grey" areas of life rather than my most candid approach which is oh so familiar, the black and white of any given fact, situation, or circumstance.  As I've stated earlier, this is extremely hard for me because at times I feel as if I'm lying to myself or in some what denying, or "unlearning" what I already know, which is the cold hard facts.  I've realized that I have studied science for so long that not everything is black or white.  There are grey areas of life, mostly in matters of the heart.  I read once that women should never believe anything what a man says but to believe what he actually does, his actions.  I have lived by this for so long but again, to me this is black or white.  You either follow through with what you have said, or simply you do not.  This is how I have based the decisions that I have made while keeping my heart at bay.  "When one is ruled by their emotions, they live a very challenging life.  Be the surgeon.  Stay neutral.  Go in and get the job done and leave.  Do not feel."  This was the advice given to me by someone that I've trusted for sometime.  So I have been wrestling with these thoughts of being ruled by my mind and logic or being ruled by my heart.  This week at yoga, the theme was to "unlearn what you already know".  How powerful is that statement but yet so confusing at the same time.  How can we just ignore the facts?  How can we throw caution to the wind and imagine what exactly we want for our life without a care as to what we do already know?  The answer, ironically is I don't know.  I can only go by, dare I say it, what I feel.  And what I feel is, oh so overwhelming.  And my heart, oh my heart.  So alive and scared at the same time.  Can the hope I have be real?  Can my faith manifest itself so greatly that all of my wishes, desires and dreams come true?  God I hope so.  Otherwise, what is faith?  Why do we believe?  Why do I believe?  So really, all I know is that, I must trust that all of this is for a reason.  I must have faith that all will be right.  I must believe in happy endings.  I must unlearn what I already know and search my heart.  Trust my heart and feelings and have the courage to march into the unknown.  For as the poem states " the less I know, the more I am free."