This is a sizeable topic, and I expect it'll take many years for me to finish it out. But for now, having been making wines for over a decade, I am starting to understand why I am a winemaker.
I come from a family of artists. Most of them disgruntled for one reason or another. One left his home country of Sweden. One became an engineer. My brother is a story unto himself. Each one of us seems to have been firstly hindered by a commitment to a certain medium. Pen-and-ink, oil, watercolor, ceramics, motorcycles, woodworking.
I don't draw. Doesn't mean I can't. But I never spent the effort and put in the time to learn how. But I did know how to drink. As a teenager, you go through all sorts of phases, most of them preoccupied with quantity rather than quality. But somehow early on I was attracted to the taste of really good beer. I started homebrewing when I was 23, with many failed batches of pilsners, IPAs, and meads to learn from. All homebrewers--if you didn't know it already--will drink just about anything. And I was a homebrewer, I had paid good money for that barley and hops, and damn it, it was going to be drunk.
Unfortunately, my palate couldn't handle it after a while.