I want to explain your comment further; If we work hard, we will be more successful, and if we are more successful, then we will be happy. So success and happiness both are interrelated no doubt.

I think It is important to get each day off to the right start, so getting into a happiness state of mind early in the morning is very advantageous for the rest of the day, not only to be happy, but to be successful.
Thanks for sharing your views and appreciation as well @xabi