The joy is in the playing.
Schroeder

Play is those non obligatory activities we do in life. We engage with them primarily for their own sake rather than to produce some kind of outcome and they tend to lead to some positive feeling.
Dr. Cathy Hope

An Expert Guide To Playfulness, Sunday Brunch with Kim Huynh and Dr. Cathy Hope (Listen: 9 min)

Engaged play increases your happiness, aligns you with your deepest needs and is a huge predictor of your well-being.
Kathleen Alfano
10 Ways Adults Can Be More Playful (Read: 3 minutes)
Everyone Has A Peanuts Character That Matches Their Personality — Here’s Yours (Play: 30 seconds)