The Reason to Excel On Tools
Is to leave them aside. To be connected to them—as a sketcher to her pencil or a painter to her brush—so the tool fades to let the creative focus on the design, instead of getting lost on the tools.
Knowing what you can do with each tool is essential to create. Otherwise, time disappears trying to master a tool rather than creating with it.
Knowing when to go back to pencil and paper—and concentrate in ideas—is important too.