However, the key is to meditate and keep meditating regularly. In his book, No Mud, No Lotus: The Art of Transforming Suffering,Thich Nhat Hanh shares an insight which helped him in his meditation practice: “When I was a young monk, I wondered why the Buddha kept practicing mindfulness and meditation even after he had already become a buddha. Now I find the answer is plain enough to see. Happiness is impermanent, like everything else. In order for happiness to be extended and renewed, you have to learn how to feed your happiness. Nothing can survive without food, including happiness; your happiness can die if you don’t know how to nourish it. If you cut a flower but you don’t put it in some water, the flower will wilt in a few hours.”
So, even if you are satisfied with your current happiness level, it still needs to be nourished through regular meditation.