Final answer:
Charlotte Perkins Gilman wrote "The Yellow Wallpaper" from a first-person perspective to intimately depict the damaging effect of the rest cure on the protagonist's mental health.
Step-by-step explanation:
Charlotte Perkins Gilman might have written "The Yellow Wallpaper" in the first-person point of view because she wanted to illustrate how the rest cure could seriously damage a person. By utilizing the first-person perspective, Gilman effectively conveys the protagonist's psychological descent into madness, providing the reader with a direct line to her thoughts, feelings, and perceptions. This narrative choice allows readers to experience the impact of the rest cure and the protagonist's environment on her mental state from a very intimate and personal vantage point.