May you smile in the morning, and the next sentence is

May the four monsoon blow and bring you good luck.

May you have a smile in the morning. Happiness in a smile means: I hope you will be happy when you get up every day, always smile and always be happy, because a smile is a kind of friendliness, a smile is a kind of happiness, a smile is a kind of tolerance and a smile is an acceptance. So the other party wants to say that this person is doing very well.

Be a person who loves to laugh. I like to shine my little sun and face life with a smile. Life is like the same song, there are always ups and downs, and nothing can be overcome by a smile.