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). At the time, dreams were thought to be sent by God, which meant that they served to warn the dreamer of the future. From this concept Aristotle developed the theory “Dreaming is a function of the imagination”. Aristotle believed that dreams were images of past experiences, which his idea is still believed today. Aristotle emphasizes dream activity as part of psychology, but not of nature or theology. His idea had a significant impact on the Middle Ages, Renaissance, modern times, etc., which in each period developed, added and revised his thoughts related to the topic of dreams. My goal is to answer the empirical research question: "How does the surrounding environment influence dreaming?" After all, "Dreams can also refer to one's goals and fantasies, which may be beyond one's reach and which may be frightening." The purpose of this literature review is to analyze and identify any causal factors related to dreams and provide further insights 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 attempted 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 have been found to be realistic representations of their lives. Children's dreams are reflected in their interactions and surrounding environment, creating a selfish drive. This presents different stages of growth, which their dreams pre... content. Older research into explanations for differences in dream manifestations continues to be used, but more recent investigations have begun to question previous findings. More and more researchers are finding empirical evidence to support the view of gender as social content in dreams rather than biological. Matlin's 1996 comprehensive review is an example of a constructionist model that supported understanding individual differences in psychological adaptations, thinking abilities, and personality characteristics. Matlin's comprehensive review showed that adult men and women who share similar waking roles likely experience overlap in terms of problems, conflicts, and unconscious concerns...