With the rare combination of lucid verve and solid scientific grounding evocative of Oliver Sacks or Malcolm Gladwell, Dr. Brian Boxer Wachler guides readers on a fascinating tour of the bedrock of our existence -- the way our senses perceive everything and everyone in the world around us. Why does one person see Jesus in a shower curtain, get a bad feeling about someone they've just met, or hear a conversation so differently than someone else? Boxer Wachler describes some of the mysterious medical conditions that cause nonpsychiatric hallucinations and neurological mix-ups, then focuses on how we all receive and interpret the messages of our senses. This practical as well as provocative book also offers readers ways to improve their own perceptual intelligence and "reality-check" their perceptions to make desired changes in their lives.