Gandharvas gives art, music and entertainment a place on the board. The name evokes celestial musicians; here, that image opens a reflection on pleasure and imagination. A game, a song or an evening with friends can be worthwhile without producing a measurable result.
The same activity can serve different purposes on different days. Sometimes it restores a sense of ease. Sometimes it fills every available pause so a difficult thought never gets a hearing. The board cannot decide which is happening for you.
Think about how you feel before, during and after an activity you enjoy. That may tell you more than a strict division between productive time and wasted time.