"Into" is a preposition that indicates movement toward the inside of a place or object. It can describe physical movement, such as walking into a room, or abstract concepts, like diving into a topic. This word helps convey direction and transformation, showing how something enters a new space or state. In addition to its physical meaning, "into" is often used in phrases that express interest or engagement. For example, someone might say they are really into music or sports, indicating a strong enthusiasm or passion for those subjects. This usage highlights personal connections and involvement.