The quote "I was pretending to be a monster, and I became a monster" from Jonathan Safran Foer's "Extremely Loud and Incredibly Close" reflects the deep transformation that can occur through the process of assuming a different identity. It conveys a powerful message about how the act of pretending can lead to a profound change in one's character or perceptions. The idea suggests that engaging with fear, grief, or trauma can sometimes manifest in external behavior, affecting one's true self over time.

This statement also highlights the psychological impact of emotional struggles, illustrating how coping mechanisms can unintentionally shape an individual's reality. By pretending to be something one is not, there is a risk of losing touch with one's authentic self. Foer's work often delves into themes of loss and identity, and this quote encapsulates the challenges faced when navigating through overwhelming feelings, ultimately showing the delicate balance between pretense and reality.