Katherine Patterson, a novelist who deserves to be better known among adult readers, has an interesting line in her book Come Sing, Jimmy Jo. The eponymous protagonist comes from a family that performs mountain music and, although he has the family gift in spades, he will only sing at home because of his shyness. Early in the book his grandmother tries to convince him he should sing for others, because (I don't own the book, so this is from my middle-aged brain's memory)
"Every inspiration that is blocked by pride is an offense
against God. There are incalculable numbers of great works of art that never
were produced because of human pride--fear of criticism, the domination of the
ego which wanted to impose one's own desires rather than serve a higher truth."
(Father George Rutler)
"God doesn't give private gifts."