What is happiness

I think defining happiness is difficult.
So I would like to start thinking what is happiness by listing things that I feel happy

• Eating delicious food
• Chatting with my friends and family
• Playing around with my dog
• When I woke up in the cold morning in winter and stay in bed
• Staying in Kotatsu in winter
• Running, and feel refleshed
• Having something that I can be into it.
• Going to Disneyland with my friends and meet mickey mouse
• Working in Disneyland
• Shopping
• etc....

These listed things seems very small but I feel happy when I am doing these kind of things.
By listing those I realized that my happiness is basically having friends, family, and having something that I can be into it, and having time to relax myself.