When you do hard routes, you have to try hard. They're not easy routes. You have to give everything you have. You have to get totally animalistic. When you're super pumped, I have to yell to bear down. [...] It's like martial arts. When Bruce lee threw a punch, he had to mean it. Haahhh! Like that. When you're doing a hard move, there is this excess energy you have to let out. Air explodes out of you.