However, he did not perceive any physical changes occurring within his body.
The stabbing pain in his eyes gradually subsided. Soon, he shakily tried to open them, only to find the world had turned grayscale, with black lines outlining objects, like a sketch.
In the air, a thin fog seemed to swirl chaotically and ceaselessly.
Before he could get used to this sight, a flash of color captured his attention—it was the book.
The text on the pages had vanished, replaced by characters composed of spiritual light points.
Soon, he discerned some information from these characters.
The book was indeed the author's experimental notes on exploring Spiritual Essence, recording their experimental thoughts. To better observe changes in the Spiritual Essence of the subjects, they had created a witchcraft called 'Spiritual Vision.' This witchcraft magnified inspiration by isolating Spiritual Essence perception and enhancing one's view of it.
