It just plain forms. There are painters who transform the sun into a yellow spot, but there are others who, thanks to their art and intelligence, transform a yellow spot into the sun. Faith gives you sight. He is essentially a channel. The job of the artist is always to deepen the mystery.
Talent is genetic.
It's what you do with it that counts. There is no must in art because art is free. But once these barriers are broken, it will enter the realms of childhood visions and dreams. The painting has a life of its own. There are as many solutions as there are human beings.