The world itself dreams For Plato and many medieval philosophers, imagination was construed primarily as a mimetic act of mirroring, representing, copying. This approach was often associated with deceit and illusion, with confounding original realities with secondary substitutes. By contrast, for Kant and the romantics—including German idealists and existentialists like Sartre—imagination was hailed as a productive force in its own right, the source of all true meaning and value. Bachelard resisted both extremes. For him, imagination was at once receptive and creative—an acoustic of listening and an art of participation. The two functions, passive and active, were inseparable. The world itself dreams, he said, and we help give it voice. Gaston Bachelard, The Poetics of Space imaginationcreativity
Music and Imagination A Book by Aaron Copland www.goodreads.com The Gifted Listener: Composer Aaron Copland on Honing Your Talent for Listening to Music musicimagination
Caustic (optics) Caustics made by the surface of water. In optics, a caustic is the envelope of light rays reflected or refracted by a curved surface or object, or the projection of that envelope of rays on another surface. The caustic is a curve or surface to which each of the light rays is tangent, defining a boundary of an envelope of rays as a curve of concentrated light. Wikipedia en.wikipedia.org Architectural CausticsCaustic Engineering caustics