Repression is a psychological defense mechanism where individuals unconsciously push away thoughts, memories, or feelings that are too painful or uncomfortable to deal with. For example, someone who has experienced a traumatic event, like the loss of a loved one, might not remember the details of that event because their mind is trying to protect them from the emotional pain associated with it. This process can lead to unresolved issues that may affect a person's behavior and relationships later on. Over time, repressed feelings can resurface in unexpected ways, such as through anxiety or anger, making it important to address and process these emotions, often with the help of a therapist or counselor.