" Any athlete who experienced race-level effort completely out of context would instantly regain full respect for its awfulness. If a runner were to suddenly experience the same level of effort she felt during the last mile of her hardest marathon while climbing a flight of steps at home, for example, she would probably fall to the floor and call for help, believing she was dying. "

― Matt Fitzgerald , How Bad Do You Want It?: Mastering the Psychology of Mind Over Muscle