Practise spirit. The imperative given to my teacher by his teacher. Without a doubt the most important command you'll ever be given. If the work doesn't make you more intensely alive, more passionate, then it's not worth its salt. And if your teacher cannot teach spirit then they will end up holding you back: locking you, pathetically and tragically, in a system that promises much but ends up slowly killing you. It will of course be no ones fault but your own but it's still sad to see.