This publication brings together the works of artist Yann Pocreau, works about light, or at least about the essence of light from a philosophical and aesthetic point of view. The artist has conceived the book as he would an exhibition, each page interacting with the next through meticulously chosen details to alter our perception with each reading. Three authors lent themselves to the game of writing with different perspectives on Pocreau's work, making it vast and intriguing.

Following an artistic residency at the Mont-Mégantic Observatory, the artist's relationship with art and, by extension, the world, was profoundly transformed. His attitude as a researcher leaves room for the indefinable and the impermanent through the beauty of the image.

"Despite spending a lot of time preparing for a scientific experience, on those glorious nights at the Observatory, beautiful even when it was cloudy, what I saw astounded me. While I was preoccupied with very specific questions about light, what I realized on the night of July 20, 2018, on top of that mountain, was that my real mindset was one of wonder suffused with cosmic vertigo; a tremendous oceanic feeling."

- Yann Pocreau