"The Epic of Tea: Tea Ceremony as the Mythological Journey of the Hero" is one of the most important articles about chanoyu in English language. It was written by the late Daniel Kane, an Urasenke practitioner in Santa Fe and ran in the first issue of Kyoto Journal.
It review some of the Taoist inspired aspects of space, time and utensils, including yin-yang, 5 elements, furo mandala, etc.