Happiness--Why Not Always?

"the settled happiness and security which we all desire, God withholds from us by the very nature of the world: but joy, pleasure, and merriment, He has scattered broadcast. We are never safe, but we have plenty of fun, and some ecstacy. It is not our hard to see why.
The security we crave would teach us to rest our hearts in this world and oppose an obstacle to our return to God: a few moments of happy love, a landscape, a symphony, a merry meeting with our friends, a bath or a football match, have no such tendency. Our Father refreshes us on the journey with some pleasant inns, but will not encourage us to mistake them
for home."

• C.S. Lewis in The Problem of Pain