The pursuit of happiness

The pursuit of happiness, they say happiness is understandable, teachable and is obtainable. I say it sounds easy but complicated; changing the word obtainable to pursuit makes it more complex, as to why it needs to be pursued. Aristotle said that “Happiness is the meaning and the purpose of life, the whole aim and end of human existence”. The goal of human existence and the constant pursuit to attain its purpose “Happiness” to live in the world, then the question is now, how?