Step-by-step explanation:
The given extract is taken from the book, "The Cloud of Unknowing".
The book, The Cloud of Unknowing, was written in Middle English in the late 14th century. This book is based on the mystical theories and practices practiced in Christianity. This book gives the message to humanity to surrender oneself to the will of God.
The Cloud of Unknowing was translated by Saint Denis. There are 17 manuscript of this book.
Therefore the answer is ---
"The Cloud of Unknowing"