These simple lines are really meaningful and convey a strong message. When happiness depends on transitory things like success, money, job, status, house etc. it brings miseries and despair. Instead, when happiness emanates from our inner and true self, we remain connected and happy.
Happiness is a state of mind and matter of our conscious choice. When we choose to do what we love we become happy and successful as,
“Pleasure in the job puts perfection in the work.” — Aristotle