If you like me, I have no objection, but please ask the angel for permission first. The author said that happiness is the song that angels sing for people, and singing for angels is what the happy people give back to the angels. What is happiness? Everyone's concept is different. We look for it for a long time or maybe we can't find it for a long time. When we stop, we realize that I am actually very happy. Follow the article and it will take you on the road to find happiness...