Timeboxing (and not Time Boxing)

Time is a commodity, a limited resource. It's a commodity that cannot be traded or bartered in its literal state. But, the wise trade it for getting work done, money, skills etc. Timeboxing is the art of not wrestling with time but understanding the finiteness of it and taking it into piecemeal. The piecemeal allows one to perceive the time in its tangible form and makes it easy to work with.

Also, the wise do not use the timeboxing technique to become productive. That's a myth. They use this technique to free up their time, their space and the mental clutter.