The causes of dreams have remained a philosophical debate since the Hellenistic period (which is the period between the history of ancient Greece and that of the Mediterranean). It was believed at that time that dreams were a gift from God, meaning that they served to warn the dreamer of the future. From this concept, Aristotle developed the theory that "dreaming is a function of the imagination." Aristotle believed that dreams were images of past experiences, which is still believed today. Aristotle emphasizes dream activity as part of psychology, but not nature or theology. His idea had a significant impact on the Middle Ages, the Renaissance, Modern Times, etc., where each period developed, added and revised its thoughts on the theme of dreams. My goal is to address the empirical research question: "How does a person's environment affect their dreaming?" After all, "dreams can also refer to a person's goals and fantasies, which can be out of reach and frightening." The purpose of this literature review is to analyze and identify all causal factors related to dreams and provide deeper insight into the causes. Biological theories: There are two main schools of thought in the existing literature: biological (age) theories and social (gender) theories. ). Biological explanations have sought to find more concrete reasons for bodily changes and personal growth in children, adolescents, and adults. In a psychoanalytic study it was recognized that dreams change depending on age. For this reason, children's dreams turn out to be realistic depictions of their lives. Children's dreams reflect their interactions and environments, creating a selfish drive. This presents different stages of growth, which their dreams presuppose...... middle of paper ...... heirs lives. This research on adult dreams has challenged historical work on the Freudian theoretical framework for understanding gender differences in dreaming. content. Older research into explanations for differences in dream manifestations continues to be used, but more recent investigations have begun to question earlier findings. More and more researchers are finding empirical evidence that supports that gender is seen in dreams as social rather than biological content. Matlin's comprehensive review from 1996 is an example of a constructionist model that supported the understanding of individual differences in psychological adjustments, thinking skills, and personality characteristics. Matlin's comprehensive review showed that adult men and women who share similar waking roles are likely to experience overlap in terms of unconscious issues, conflicts, and concerns..