Answer:
If you enjoy what you're doing then you will be happy and it won't feel like a job at all.
Step-by-step explanation:
This is just my interpretation. You could honestly ask 1000 people and get 1000 different responses.
But. In my view he is telling you that if you're happy with what you are doing then it won't feel like a job at all. It will be something that you can do with joy.