Do what makes you happy?

"Do what makes you happy" - I've heard this quote several times now, and something in me just doesn't feel right when I hear it. Are we really supposed to just do what makes us happpy? It's that easy? When thinking more deeply about this phrase and why it upsets something deep inside me I decided to investigate and write about why this statement just isn't right.
First of all I think the main reason I am personally not kosher with this statement is that it goes against everything I believe in as a Christian. No where in the bible have I found a statement indicating that we should just throw all caution to the wind and do what makes us happy. I've read that we should "rest in Him", that we should "be anxious for nothing"(phillipians 4:6) in order to let him take care of things and make us happy HIMself, I've even read that we should "love our enemies, bless those who curse us, do good to those that hate us, and pray for those who use us" (Matt 5:44) also if "whoever slaps you on your right cheek, turn to him the other also." (matt 5:39) - that sounds like a whole lot of things that DON'T make us happy that Jesus commanded us to do. And what do we get in return for this? "BLESSED are the poor in spirit, are those who mourn, the meek, those who hunger and thirst, the merciful, the pure in heart, the peacemakers and the persecuted - for theirs is the kingdom of heaven" (Matt 5:3-10) There just might be something to this "taking up our cross and following Him." Just maybe the answer doesn't lie in being carefree and independant, but to trust and rest in him.... actually I've found that resting in Him and obeying Him I do not have to to DO - as in work - for what makes me happy - but it is rewarded and given to me.
On a non-biblical note -yes I thought about this is many aspects - if we are supposed to do what makes us happy does that mean that if what makes a 35-year-old man happy is molesting a 3 year old girl than he should by all means go for it!? I recently watched a movie called Mr. Brooks (fabulous) about a normal family man by day and "thumbprint killer" by night. It gave him a thrill to kill and made him - yes- "happy". And in all honesty to just end the argument now - most killers, child molesters and so on do not see the harm or immorality in what they do, they're crazy, but hey it makes them happy, right? But, this is kind of extreme so let's knock it down a notch; If a man is not happy with his wife should he find a woman that does make him happy and cheat on her? If I am not happy with my boss should I cuss him out and walk out on my job? yes, that would make me very happy somedays, but is it the mature and right thing to do considering later consiquences?
So, let's be logical. In order to "do what makes you happy" we must be selfish, greedy, not caring about other, impulsive, carefree and independant; Which leads me to my next question:
What happends to those of us who DON'T make you happy? What's left of the wife that didn't make you happy? What's left of the girl that wasn't good enough to make someone happy or the guy that didn't make the team because he didn't make the coach happy? Do we forget about these people, toss them to the side, not care about how they react or get along in their lives because, well - they just don't make you happy? I have been the girl that didn't make someone happy, more than once, and for all of those who just "do what makes you happy", it hurts to be the person that wasn't apart of what makes you happy. And I'm sure we've all been that person at sometime. I hope you are the person that doesn't go into denial, but will acknowledge those moments in your life and reflect on how it felt. Perhaps those feelings will come to mind for you next time you want to "do what makes you happy."
To conclude my thoughts I will by clearly stating that I will not make this a regualr credo in my life. Fight for what you believe in, suffer for the sake of the cross, REST in Him and you will be awarded what makes you happy. Personally I would like to know that I have worked for and earned my gifts and presents in life rather then stepped on toes, hurt others and risked different dangers (and drama) to get what I want. Take my thoughts as you will, hey, do what makes you happy...