Answer
Happiness is a state of mind which makes you feel accomplished in life and having everything in this world without a single reason to repent. Well, although there can be no perfect definition of happiness; happiness is when you feel you’re at the top of the world where a sense of complete satisfaction prevails. The meaning of happiness is relative and varies from people to people. For some, happiness is when you experience professional success, reunions with family and friends, eating out, reading books or watching good movies. While for others, happiness can be accomplished by some weekend activities which might help you de-stress and get the satisfaction of mind.
If you involve yourself in social activities where you help the needy and provide support to the weaker section of the society, you can experience happiness if not anything else. When a young boy flies a kite, plays with mud, and watches the nature, for him, that is the greatest happiness in the world.
hope this helps and have a wonderful day:)