Agree on the three types of happiness. I believe everybody has these three things that make them happy. Just that most of them haven't yet realised their greater purpose and in time they will. The last line is very true - "Happiness lies within you. Happiness is never outside you. It's always within you. If you want to be happy, you can. No matter the external circumstances. Happiness is inside YOU."
Many people don't know this part. Hence they try to find happiness in things outside themselves. Specially overly attached couples who attempt suicides in case of breakups or go into depressions. It shows that withoit the other person, they can't be happy. They need to come out of it and learn that they are the creators of their own happiness, and that they should never rely on someone.
Great article sir! :)