In order to distinguish and classify the different kinds of dreams inwhich everyone has an experience they may be divided into fourvariations. Nearly all dreams may be classified under this heading: 1. Physical Stimulus. 2. Subconscious memory. 3. Telepathy. 4. The Actual Astral experience of the Ego or Soul in the Astral region.Physical Stimulus may be the direct cause of impressing certain ideason the physical brain which may appear to be a reality. The falling ofa book, picture or any article in the room may cause the sleeper todream of firearms; a soldier may dream of a battlefield; a sensitivefemale may dream it is a burglar; a person who throws the bed clothesoff him on a cold night may dream of snow and ice; the continualdropping of water from a faucet in the room of the sleeper has beenthe direct cause of a friend of mine dreaming of a passenger train;the steady tramping of footsteps overhead may be the cause of dreamingof thunder storms, etc. We must also take into consideration thephysical and mental environments of the sleeper.