This is to express one's concern and lovesickness.

If everything goes well with you, my mood will be as clear as a sunny day.

If you are happy, then I am relieved and I will feel very happy.

May you be treated gently by the whole world.

This is a very literary greeting.

In layman's terms, I wish you all the best and all your troubles will not bother you.

Because this world is sometimes very realistic and cruel, those who bless you wish you happiness and will not suffer.