Meditation can occupy a unique space between work and play. One of the goals of meditation can be an experience beyond, or at least parallel to, goal-awareness.

I say "can be" because there are multiple kinds of meditation. A famous meditation researcher whose name I've forgotten lists three: focused, wandering, and empathic. (I'm not sure those are the canonical terms for them.) Wandering is my favorite.

Yeah that "enjoyable" state is kind of difficult to describe. My experience may be different than yours but for me it's an emptiness of being in tranquility with the chaos of my own thoughts. Only with deliberate practice. To me "work" does not mean suffering but directed concentration and discipline. If I accept my mistakes and imperfectness of that "work" the process to me is "enjoyable". But the "joy" is difficult here because it's not really that exact emotion.

Perhaps satisfaction and contentment are more accurate?

Aim to get into a jhana, it’s a real state of being and quite wonderful.