In the past, my sense of curiosity has led me to chase unending novelty around the world. But looking at it another way, perhaps activities that will stick the most in the long term are those we should keep. Something you don't mind doing a thousand times with little variations.
Like running is inherently a super repetitive exercise by form alone, but who you run with, where you run, and the reason you're running make all the differences. This way you can keep placing your foot forward.