I would happily recommend you to read "Hallucinations" by Oliver Sacks. This book is not about UFO sightings, but about how ordinary people can have wild halluc

I would happily recommend you to read "Hallucinations" by Oliver Sacks. This book is not about UFO sightings, but about how ordinary people can have wild hallucinations. For example, an elderly woman who would regularly have very vivid, daytime, hallucinations of a concert being played in her living room. She knew it was not "real", but it was comforting and a welcoming distraction from the isolation that elderly folk often suffer from. It is quite an eye-opening book.