Attention, ability to spontaneously express inner feelings, independence, erudition, sense of fascination about what you're doing (I rarely if ever wrote a poem or short story – even article – being either emotionally not involved or not inspired). Add some style on top, and you're done.
Everything of this doesn't appear out of nowhere, still. As I've figured out some of these days, perrenial and painstaking work may as a piece of cake turn one into a recognized genius.
Fatalism's irrelevant – it's not about with what baggage you were born, it's about what you are willing to do to achieve your goal, to realize your dream. Therefore, persistence needs to be counted, too.
As a writer, poet, or playwright you're going to deal with publishing houses, and if you hadn't passed through rejections, that probably means you have never submitted your work, in principle. If you believe in what you're doing – you won't stop writing even if magnifying glass of public attention isn't focused on you.