“Drumming, dancing, running, walking, some forms of speaking, and even some modes of writing invite the otherwise ordinarily distinct assets of the hemispheres into mutual collaboration, expression, development, distinction, and excellence. Of course, any activity may qualify; it is a matter of the spirit in which it is undertaken, pursued, developed, and expressed. Yet, some associations are nearly iconic, and the combination of dancing and drumming seems primordial. One imagines precursors. The rhythms involved in physical pursuit or retreat, as an example.”

— an a i