There is something called the rapture of the deep, and it refers to what happens when a deep-sea diver spends too much time at the bottom of the ocean and can't tell which way is up. When he surfaces, he's liable to have a condition called the bends, where the body can't adapt to the oxygen levels in the atmosphere. All of this happens to me when I surface from a great book.
Nora Ephron, I Feel Bad about My Neck: And Other Thoughts on Being a Woman
humorous, reading-books