Dreams are successions of images, ideas, emotions, and sensations that occur during sleep. However the purpose of dreams has always been a topic for investigation, as well as a matter of philosophical and religious interest.
One theory as to why we sleep is that dreams work hand in hand with sleep to help the brain sort through everything it collects during the waking hours, as humans’ brain collects hundreds of thousands, if not millions of inputs each day.
During sleep, the brain works to organise all of this information and decide what to hang on to and what to forget.
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