What is the reference to papercut in ln linkin park song papercut?

In the song "Papercut" by Linkin Park, the reference to "papercut" has broader implication. While it literally means a cut on the finger from paper, the song metaphorically uses it as a representation of emotional pain. The song explores themes of self-harm and internal struggle. The protagonist talks about feeling invisible and unappreciated by others, which they compare to the way a papercut may go unnoticed or dismissed .They express their desire to be acknowledged and understood and convey the idea that even small hurts can have a profound effect on one's mental well-being.