Whither happiness?

For happiness, how little suffices for happiness!…the least thing precisely, the gentlest thing, the lightest thing, a lizards’s rustling, a breath, a wink, an eye glance—little maketh up the best happiness. Be still.

Friedrich Nietzsche – Thus Spoke Zarathustra

and similarly:

The playfulness and joy of a dog, its unconditional love and readiness to celebrate life at any moment often contrast sharply with the inner state of the dog’s owner — depressed, anxious, burdened by problems, lost in thought, not present in the only place and only time there is: Here and Now. One wonders: living with this person, how does the dog manage to remain so sane, so joyous?

Eckhart Tolle, Stillness Speaks