The experience was disagreeable. I began to feel like an atheist praying. - Ursula K. Le Guin

A scientist can pretend that his work isn’t himself, it’s merely the impersonal truth. An artist can’t hide behind the truth. He can’t hide anywhere.

“Sometimes a god comes,” Selver said. “He brings a new way to do a thing, or a new thing to be done. A new kind of singing, or a new kind of death. He brings this across the bridge between the dream-time and the world-time. When he has done this, it is done. You cannot take things that exist in the world and try to drive them back into the dream, to hold them inside the dream with walls and pretenses. That is insanity. What is, is. There is no use pretending, now, that we do not know how to kill one another.”

We have inhabited both the actual and the imaginary realms for a long time. But we don't live in either place the way our parents or ancestors did. Enchantment alters with age, and with the age.
We know a dozen Arthurs now, all of them true. The Shire changed irrevocably even in Bilbo's lifetime. Don Quixote went riding out to Argentina and met Jorge Luis Borges there. Plus c'est la même chose, plus ça change.