Book excerpt: Through a richly detailed close reading of Wilfred R. Bion’s work on dreaming, as scattered across multifarious and largely unworked texts, this book argues that Bion’s thinking can form a unified theory of dreams which extends and has further implications as a visionary model of the mind. The central quality of Bion's visionary model of the mind is the belief that all that is interesting in the human mind pulsates with an unreadably complex dynamic beyond the unknown, the unknowable and the unthinkable. However, rather than interpreting this negatively, the author understands the inevitable unknowability of the human mind as a call to perplexity and wonder which actively encourages the intuition of fundamental insights into who and what determines our internal lives. A major implication of this belief is that psychoanalysis is itself essentially about the unknown, and Monteiro generates informed observations about how this may influence psychoanalytic work. Providing renewed insight into psychoanalytical understandings of dreams, this book is essential reading for any psychoanalyst wishing to broaden their knowledge of the importance of Wilfred R. Bion’s dream work.