A dream can include any of the images, thoughts and emotions that are experienced during sleep. It is an involuntary activity.
Despite improvements in medical technology and sleep research, experts today still have not reached a conclusion about why people dream. They have, however, developed some interesting theories.
Some experts believe dreams are a way to process all the events and emotions we experience throughout the day. They believe dreams play an important role in our physical, mental and emotional health. Similarly, other experts claim dreams are a form of problem-solving. They believe our dreams provide us with a safe place to work through problems, questions and dilemmas in our lives. Some researchers suggest that dreams serve no real purpose is a mere bodily function. On one side of the debate are those who think dreams are random images, and on the other are those who think there is deeper significance to what we see in our mind's eye. Some scientists believe dreams are the cortex's attempt to find meaning in the random signals that it receives during REM (Rapid Eye Movement) sleep.
Ranging from spiritual associations to a means of relieving stress, little conclusive research has been accomplished.