You don't have to purchase The Book of Privy Counseling. It's archived in a pdf file: https://ia804602.us.archive.org/17/items/the-book-of-privy-counseling-in-middle-english/The%20Book%20of%20Privy%20Counseling%20in%20Middle%20English.pdf
It comes with the Cloud of Unknowing, but I treated it as a separate book. I liked the personal direct advice given in the book. This spiritual director advises his directee to complete immerse oneself in the moment, forgetting everything, including his self. Only then will the directee find himself with God. He will be conscious only of the divine.
Thomas Aquinas, when asked by God, what he wanted, answered, "only You."
