Pierre-Auguste Renoir had a handle on how 'creatively' sometimes we have to allow ourselves to be stretched. He wrote..."One must from time to time attempt things that are beyond one's capacity."
Robert Browning penned something similar . “Ah, but a man's reach should exceed his grasp, or what's a heaven for?
There are always set backs along the way too. The route from conceptualization to realization isn't always straight or swift . You may have an idea without any foreseeable opportunity presenting itself as to where or when the thing might ever be executed. Waiting plays a big part in this process. Exceeding ones grasp may in fact involve an exceeding amount of waiting. But this may merely be a 'stay of execution'. And then the thing may have to die before it finds wings.
Case in point was this design which had been shelved for years until finally the right opportunity came along to implement it. It needed a client who trusted that it was going to work and look good. Then the challenge became to imagine how to actually do it!
The good thing is that much of the process often involves extra hands and friendly cooperation.
And finally, if what you create together is a success, a bottle of something can be be cracked open and a bit of a christening is in order, while everyone holds a celebratory drink in their hands.