I ask Lynch about those days. Yes, he really was besotted with happiness on that shoot. "We should be happy in our work!" he tells me. This is where meditation comes into play, he says. "Most of us, probably, work and there's not much happiness in it. We look forward to the weekend, but the weekend is short. Friday night's OK, but by Sunday, you're worrying about Monday. It's a nightmare. But if you start bringing that happiness from within, and it doesn't matter what your work is. You're happy doing it, and solutions to your problems will come. We're supposed to enjoy the doing. So enjoy the doing."