Majority of the persons in the world dream at the night while sleeping. The basic theory is that the dreaming by an individual is dependent on the conditions and situations that people face in their life. If the person is thinking positive and dream for becoming a successful  person so the dream is also positive. A unexpected dreaming  by the person who watches horror films and dream is also horror.

An average person may have three to five dreams per night, however, most dreams are quickly forgotten. Dreams mainly occur in the Rapid Eye Movement (REM) stage of sleep. At that stage the activity of the brain is high and feeling comes as if we are awake. If one awakens during the REM phase of sleep, it is likely that dream is remembered, otherwise dreams are immediately 

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