enjoyment
The pleasure or happiness you feel while doing something fun.
Enjoyment is the pleasure or satisfaction you get from doing something you like. When you lose track of time playing your favorite game, that feeling of fun and contentment is enjoyment. When you savor a delicious meal or laugh with friends at lunch, you're experiencing enjoyment.
The word captures a quality of engagement and absorption: you're fully involved in what you're doing, whether that's reading an exciting book, building something with your hands, or playing a sport you love. Notice how different activities bring enjoyment to different people. One person finds enjoyment in solving math puzzles, while another gets more enjoyment from drawing or playing music.
You can use the word as a noun. You might say, “I get a lot of enjoyment from hiking.” The related verb is enjoy, as in “I really enjoy hiking.” The word can also describe appreciating simpler pleasures: the enjoyment of a sunny afternoon, or enjoying the taste of fresh strawberries.