Q: and what drives you to continue on a project that is starting to tire you out?
A: it's good to make sure you have a direct line of communication going with the exact original circumstances in which the project was selected. For example, if you found an apple in the kitchen drawer, and you said 'wow, that's a great apple'. and you get into this whole *apple* project about it. then, 12000000 years down the road, when you're working on the project and you feel a bit confused about the whole apple project, just think back to the original circumstance. and you may be surprised at what details you might have overlooked. such as, in this case, .........................................   the kitchen drawer