>> they dig deep for their material here. it means something. they're telling you something about themselves. >> what is -- i've heard it. [ speaking foreign language ]. >> is it an emotional state or a technical -- >> no. [ speaking foreign language ] >> is unhappiness necessary for great art? >> it's necessary, but magnifico. >> you'd have to think about that. [ speaking foreign language ] >> you perform very well after a couple days. >> i may not have one day,