Obsession refers to an idea or thought that repeatedly enters a person's mind, causing them to become preoccupied with it. It is typically characterized by an overwhelming desire, interest, or feeling that dominates one's thoughts and behavior, often leading to repetitive actions or behaviors. Obsession can be related to various aspects of life such as a hobby, passion, or even an addiction. However, when obsession becomes unhealthy, it may lead to negative consequences for the individual and those around them.