Yes, it is true that not seeing the obvious can lead a perceptive mind to reflect upon more philosophical issues. For example, the story "The Mark on the Wall" revolves around the mark present on the wall from the author's vision. The mark on the wall, which is the main plot in the story, could have easily been solved by the narrator, examining the mark more closely but she instead investigates using several mental processes to solve the mystery behind it. Instead, she reflects upon more philosophical issues. She goes back to ancient times, to the future and is in a fluctuating state of mind reflecting upon philosophies and at the same time trying to solve the mystery behind the mark. At the end of the story, it is revealed that it's just the snail who made the mark, creating a plot. However, with her interpretations and perspective, the author reflected upon many philosophical issues throughout the entire process.