There's two kinds of happiness: active happiness and passive happiness.
Active happiness is where you have to take action in order to create your own happiness.
Example: Planning out a trip to Disneyland is effort. Taking the kids is work and plenty of effort. But it's for fun. It's for your happiness.
Passive happiness is flipping on the remote control and watching reality television. Very little to no effort goes into passive happiness, it just happens, very minimal work involved.
Examples: naps, playing with your dog, taking a walk.