Instant gratification! That's what I call them, and when I seem to need a "fix" I'll burn a piece or two.
As a ship modeller, it takes considerable longer to get that "charge" of a completed piece and the satisfaction that it brings, and I sometimes miss that. That feeling is one of the things that we carve for! That rush of gratification. A half model only takes a few months to do so the gratification rush is sooner in coming with them! A relief carving may take a couple of weeks and the thrill of completing it is wonderful. Now the carving pieces: dragons, canes, figures, knots or what have you, those can be completed in a week or so and the charge of finishing one of those is sweet and savored quickly.
Only with a burning is it possible to recieve "instant gratification"! I usually complete one of those the same day and I recieve my fix of that burst of satisfaction.
But I must warn you..... the satisfaction of completing a model is powerful! Not to be trifled with. The longer that you work on a project, the fix is generally in proportion to the length of time.
Bob