“My happiness and my function are one.“
Being a Light to the world is a joyous occupation. You were created a beam of Light and a beam is happiest when it can shine unhindered.
It is very fortunate that your function and your happiness coincide, for now you know that whenever you feel happy you are on the light-and-happy-trail.
At moments when you cannot seem to find the Love and Light inside and you want them so very much, think of something that lifts your spirits. It does not matter if the subject seems to be totally different. There really is only one subject: the Light, which is your happiness.