"Got into someone's head" is an idiomatic expression that refers to the act of strongly influencing or deeply affecting someone's thoughts, beliefs, or emotions. It signifies a situation where an idea, concept, or impression becomes deeply ingrained in an individual's mind, often as a result of an intense or repeated exposure to it.
This expression is commonly used to describe how something, such as an event, a person, or a personal experience, has had a significant impact on a person's psyche, resulting in a strong fixation or preoccupation with the subject matter. It implies that the influence has made a profound impression on the individual's thoughts or emotions, possibly causing them to constantly dwell on it or affecting their subsequent behavior and attitudes.
When something "gets into someone's head," it typically implies that the person is unable to shake off its effects easily, as the idea or concept has become deeply rooted in their consciousness. Furthermore, it suggests that the person may start to integrate the influence into their decision-making process, personal beliefs, or overall perception of the world.
In summary, "got into someone's head" represents a state of being deeply affected or influenced by something, to the extent that it significantly shapes an individual's thoughts, beliefs, or emotions, and possibly impacts their behavior or actions.
