This is a slight detour off-topic, but I keep thinking of a book I absolutely loved but I have never been able to re-read it. It's The Glass Bead Game by Hermann Hesse.

When I first read it I was transported into a gentle world, like being air-lifted into a breath-takingly beautiful atmosphere. I hung on every word. When I have tried to re-read it I know that I cannot get back into that wondrous feeling. It's just words on a page. So it is an experience I had about 50 years ago which cannot be repeated, but I still remember it with that quiet joy.