We bought season passes to Six Flags this year. Amazing value. The fourth time we visited, however, my son asked to go home after 30 minutes. Apparently visits have diminishing returns.
Psychologists have a a concept called Hedonic Adaptation, which is sometimes call the Hedonic Treadmill. When bad stuff happens, we eventually return to our baseline happiness. The same thing happens when good stuff happens. This is good news for people who suffer great tragedy. It is not good news for parents who drive for six hours (round trip) to help their children experience increasing levels of joy from spinning in the air.
This means to stay happy, you must move just to stay in place. I think that is good.
Your soul has been designed for growth and eventual happiness in all circumstances.