This dream filled him with intense religious enthusiasm. Wagner's, Poincare's, and Descartes' experiences are representative of countless others in every field of culture.
As a contrast, we may consider a famous story: the discovery by Henri Poincare, the great French mathematician, of a new mathematical method called the Fuchsian functions.
There's a bunch of old guys, like you mentioned Poincare, like if you desperately need one, Corey Joseph literally was starting for the Atlanta Magic last year for a bit.