Welcome to the road of health, waiting for you at the door of happiness.

Welcome you to the road of health. The next sentence is waiting at the door of happiness. You can answer this way: We are companions on the road of health, and we walk at the door of happiness together. Meet you on the road to health and wait for you at the door of happiness. This sentence is a warm blessing, wishing each other health and happiness, so the answer should be warm. You can answer that we are companions on the road to health and we are walking on the door of happiness together.