The Pursuit of... Happyness?

Have you ever pursued something for a long period of time? Ever gone after something/ or pursued a relationship and waited it out for a long period of time, and had the feeling grow stronger and stronger inside. You start to want it more and more as you realize you cannot have it. Then, you finally get what you were chasing and it does not seem so good anymore? I know I have done this many times...
We think this think will make us happy, we think that if we could just obtain this thing, or this person's affection, or even just the friendship, that everything will just resolve itself and everything will just be okay, and then we can be truly happy. I remember a quote from the movie the Pursuit of Happyness,

"It was right then that I started thinking about Thomas Jefferson on the Declaration of Independence and the part about our right to life, liberty, and the pursuit of happiness. And I remember thinking how did he know to put the pursuit part in there? That maybe happiness is something that we can only pursue and maybe we can actually never have it. No matter what. How did he know that?" - Chris Gardner or Will Smith

Can we ever have happiness? In this world is there such thing as true happiness? WE focus so much on the pursuit of this thing, or this person that eventually we get so caught up in this chase for the happiness that this is going to bring us, and then we actually get the prized possession and it feels dull, and insufficient. The game and the hunt of trying to get what we are wanting, and what is going to bring our happiness is over, and now we have it and it seems like something is missing. We have focused so much on the pursuit of this object, this person, that we have lost focus of why this is going to bring us happiness, why it is so important. We just become consumed by our lust for this object, for this relationship this person, we get caught up in the emotions of not being able to have it.
We start to let the emotions and the disappointment of not being able to have what we want that it sets in and then we get what we want, God blesses us with something that we have wanted and we are thankful for a short period of time because the excitement of the pursuit is gone. Is there true happiness in things, in relationships and in people? Can we be happy once we have accomplished the mission of the pursuit?
Yes, I believe that there is happiness to be had from God's blessings. In the gifts God gives us, the things that we want that God tells us "alright you can have it." There should be happiness in that, but it cannot become an obsession.
The pursuit is too easy to make an obsession, and therefore almost an addiction. We get the little glimpses of the things we want in life, and it makes us want even more and more, these 'highs' keep us wanting these things, and therefore once we actually get it it does not seem so good anymore. We are not getting these 'highs' anymore, it has become the normal, it is okay for a bit, until it becomes normal, then it is not 'fun' anymore.

-I realize two things in writing this specific blog:
-my thoughts are scattered
- and I am not exactly sure what I am trying to say, (still working through this one)

What do you think? Out in Left Field or making sense? Anything to add?