Does this undermine the whole concept of my blog?

I love cracked.com. Great humor, generally great writing, and random-but-interesting topics. When I read  5 Scientific Reasons Your Idea of Happiness is Wrong, I couldn’t help but both laugh and  agree with much of the article. Basically, the article is saying that “happiness” is just a human invention, and don’t bother focusing on it–because the more you try to be happy, the less you’ll be.

If you’re looking for an answer to “How can I be happy?” then the response from the experts is, “You’re asking the wrong question.”–Kimmy Dee, cracked.com

There’s a lot packed into this article, and some really good advice. One of the tips I liked was:  if you’re going to spend money on happiness, spend it on an experience, not on material goods. I definitely do this. Many posts in my blog are about memories, times with friends, or holidays.  The money I do spend is usually going out to eat, catching up over a cup of coffee, going to a concert, or on trips. Experiences last longer in your memory, after all.

But then, my last post is a quote, supposedly from John Lennon, where he says that happiness is the key to life and success. This cracked article completely disagrees with this point, basically saying, hey, it’s not possible to be happy all the time, so living a life trying to be  is not going to be rewarding. First, once you reach a goal, then you must move on to the next hurdle. Second, if it comes a time where you’re not happy, you’re going to feel like a double failure.

So, then, why have this blog, right? Obviously, I’m kind of focused on being happy.

Should we really just forget about the concept altogether? I don’t think happiness really has to be this perfect ideal that we will never reach, and I don’t believe we can always feel it. Maybe it’s more about a peace of the soul–accepting the hardship that comes along with life–but still striving  to overcome the obstacles and working to positive relationships and other goals. And overall, focus on the positive, not the negative. That’s the point of this blog. No, I’m not always happy, but if I look to the moments, people, and things that are positive, I can stick it through even in the tough times.
What do you think? Do you agree with the cracked article? What does happiness really mean?