People have said that happiness is not just an emotion, but also a state of mind. There are things that make us happy, but in most cases we must choose happiness. I think this quote sums it up nicely.
“When I was in Piazza di Spagna, in Rome, I watched (along with others) how many locals came to drink water from the fountain there. The people beside me said to each other “Oh my goodness, how disgusting, people just drink water from anywhere,” while the whole time, I was thinking “Oh my goodness, how wonderful, people can drink water from anywhere.” We can be in the exact same place, looking at the exact same thing, but see that thing in a completely different way. You can go around the world, and go to all the beautiful places, but never be happy, because happiness is something that you bring inside of you, it is not where you are or what you are looking at, but it is how you are and how you look at.”
― C. JoyBell C.