sentence: Dreams are things that happen when people sleep.
sentences_after: By definition, dreams are a series of thoughts, images, and sensations that enters someone's mind when they sleep. There are many types of dreams. Some of which include daydreams, lucid dreams, nightmares, reoccurring dreams, etc. The history of dreams dates back to ancient times where cultures believed more into supernatural and religious beliefs. The history of dreams began with the ancient Egyptians thinking dreams were messages sent from the Gods.
concept_name: dream
headings: History of dreams