“It’s not like The Sound of Music,” he told me. “You wait for your brain and body to need it.” When Konesni launches into a work song, “Something changes pretty quick. I don’t feel my muscles in the same way. The pain disappears, like I’ve taken Advil. I start to sweat more because I’m working harder, but I also find I’m working faster.” As the physical discomfort recedes, pleasure takes over. “I start to feel this euphoria and timelessness, and I can’t tell you how many minutes have gone by.”