I have to agree with you that those that are interested in what the world values are the most blessed, but no practice 100% enjoyable. Risking misquoting him, I remember reading in one of Kasparov's books "I only love 80% of chess. I do the other 20% so that I can do the 80%".<p>In Ericsson's book about deliberate practice, he shows thru multiple studies that practice for world class performers is usually painful and not enjoyable at all. He even says that 'if you're sailing thru it, you're not practicing' (or I read this on an article about it).<p>In the end, liking what you do helps you put up with the practicing you need to do to perform what you like<p>edit: wrote 80% where I was supposed to write 100% (facepalm)