All I Feel is Rivers is a collection of a new hybrid writing that, though spiritually akin to prose poems, retains an essayistic form. After several life-changing trips to Turkey, Robert Vivian took up a deep study of Rumi, the thirteenth-century Sufi mystic, poet, and founder of the religious order that performs the now-famous dervish dance. Vivian's fascination seeped into his writing, and his newly conceived dervish essays reflect the dynamic...