Dreams may be a product of the subconscious mind. The document discusses several facts about dreams, including that humans spend about 6 years dreaming and dreams are generated in the forebrain. It also discusses different types and theories of dreams. REM sleep is explored, in which rapid eye movements occur and dreams are most vivid. While the purpose of dreams is still unclear, memory processing during sleep may play a role. Overall, the document provides an overview of what is known about dreams from a scientific perspective.