If you are deeply involved in some creative process sooner or later you face the problem with tools.
The conventional tools on the market don’t satisfy your demands anymore, and you decide to make your first tool. It is ugly looking and wobbly, but it works giving you a new sort of excitement.

You learn how to make it better.
Cutting metal, grinding, sharpening, brazing, welding, forging, machining, hardening break in to your life occupying your time dramatically. It changes your tools as well as yourself.