Psychologists designate by the term "the apperceptive mass" the accumulated previous experiences, prejudices, temperament, inclination and desires which serve to modify the new perception or idea. The "apperceptive mass" is really the "character" or "human nature" of the individual. It necessarily differs in each individual, by reason of the great variety of experiences, temperament, education, etc., among individuals. Upon a man's "apperceptive mass," or character, depends the nature and degree of his interest, and the objects which serve to inspire and excite it. It follows then that in order to arouse, induce and hold this Associated Interest of the prospect, the Salesman must present things, ideas or suggestions which will appeal directly to the imagination and feelings of the man before him, and which are associated with his desires, thoughts and habits. If we may be pardoned for the circular definition we would say that one's Associated Interest is aroused only by interesting things; and that the interesting things are those things which concern his interests. A man's interests always interest him--and his interests are usually those things which concern his advantage, success, personal well-being--in short his pocketbook, social position, hobbies, tastes, and satisfaction of his desires. Therefore the Salesman who can throw the mental spot-light on these interesting things, may secure and hold one's Associated Interest. Hence the psychology of the repeated statement: "I can save you money;" "I can increase your sales;" "I can reduce your expenses;" "I have something very choice;" or "I can give you a special advantage," etc.