This book is about meaning in music, poetry, and language; it is about signs: symbols, icons, diagrams, and more. It concerns art and how we communicate, how we make sense to each other—including the concept of nonsense. It is about metaphor and irony. It embraces a vast human universe of signification and some of its cognitive machines of meaning-making: a complex and diverse unfolding of the expressive human mind. These 24 essays study different aspects of the way we signify, present recent research and models of such processes, and discuss the—often intricate—problems of understanding the relations between expression and thought. In evolution, music may have preceded the language of words, and music remains indirectly present in every temporal unfolding of bodily, affective, playful, meaningful activity. We are immersed in meaning and have to 'listen' to it since it constitutes the semiotic reality structuring the world as we experience it.