Some other anecdotes:
At seventeen Hussain went on forty-day self-imposed retreat known as a chilla, where a musician practices in isolation until a state is reached in which the music and musician become one. The removal of everyday distractions, combined with single-minded concentration on the practice allows the musician to attain a state of Samadhi or meditative absorption, where one enters into a deeper relationship with one’s own music, and comes in direct contact with the source of music itself. Visions and hallucinations are not uncommon, where one’s musical ancestors may appear and offer encouragement or criticism. What is certain is that the musician makes remarkable progress in his craft. Hussain recalls his first Chilla in Hart’s drumming “I saw things in the music that I had never seen before, new combinations, new patterns”. Six month’s later, against his father’s advice, Zakir was ready to do a second chilla. This time around, the visions were more intense, and Hussain had a premonition that he would soon go to America. From: https://en.wikiquote.org/wiki/Zakir_Hussain_(musician)
Or
“Nobody tells this to people who are beginners, I wish someone told me. All of us who do creative work, we get into it because we have good taste. But there is this gap. For the first couple years you make stuff, it’s just not that good. It’s trying to be good, it has potential, but it’s not. But your taste, the thing that got you into the game, is still killer. And your taste is why your work disappoints you. A lot of people never get past this phase, they quit. Most people I know who do interesting, creative work went through years of this. We know our work doesn’t have this special thing that we want it to have. We all go through this. And if you are just starting out or you are still in this phase, you gotta know its normal and the most important thing you can do is do a lot of work. Put yourself on a deadline so that every week you will finish one story. It is only by going through a volume of work that you will close that gap, and your work will be as good as your ambitions. And I took longer to figure out how to do this than anyone I’ve ever met. It’s gonna take awhile. It’s normal to take awhile. You’ve just gotta fight your way through.” From: http://www.goodreads.com/quotes/309485-nobody-tells-this-to-...
Just presenting a different perspective. Its all too common to look at this idea of brilliant talented scientist to whom 'solutions come out of nowhere'.
The point really is it takes a lot of work to get to a point where you can paint a masterpiece or compose a symphony effortlessly.