Where did I get my idea?

Every published writer complains that this is the question that they are most often asked. I don't know if people assume that there is some secret well known only to published writers and if they can find it they will be published too or what. I know Stephen King often talks about his 'What-if guy'. Me? It was simpler than that. On the way to my paying job one more, I was listening to Bruce Springstein. The song, track seven or eight, I think on the Magic CD suddenly got my brain going. I kept picturing this gold coin and then, I began picturing the man with the coin. Suddenly, I had the wording of the first paragraph. It grew from there as first the man and then the other characters began to speak to me. Now, I have given free rein to the story and the characters themselves. I am excited to see where they take me. :-) After all, it's their story. Shouldn't they be the ones to tell it?