"Start by doing what's necessary, then do what's possible, and suddenly you are doing the impossible."
(Unfortunately I don't have the attribution for this quote.)
For many years I dreamed of writing and selling a book. Eventually I did. But it didn't come without doing the work involved. I started by writing short stories and articles. That was the "necessary" part. Then I wrote one page of a book. And then another and another. That was possible. Finally I had a complete manuscript. That book never sold. Nor should it. It was, quite frankly, terrible. But I had done the impossible. I had written a book.
Years passed before I sold that first book, another impossibilty. And more years passed before I sold the second. But the "necessary" steps had evolved into the "possible," which finally resulted in to the "impossible."
Joy for today: doing the impossible.