The narrator reflects on the character's obsession with reading, which consumed his nights and days. This fervent reading led to a lack of sleep, causing his brain to become parched, ultimately impairing his judgment. The multitude of stories and fantasies he encountered filled his mind with unrealistic ideas and perceptions, overshadowing reality.
As a result of this overwhelming consumption of literature, his imagination took complete control, blurring the lines between fiction and truth. He became so immersed in the tales of adventures, love, and battle that he began to believe them to be the ultimate reality, revealing the profound impact that literature can have on one’s perception of the world.