The document discusses the steps of wudu, which is an Islamic cleansing ritual performed before prayer. It lists the eight steps of wudu as washing the hands and wrists, rinsing the mouth, drawing water into the nose and blowing it out, washing the face, washing the forearms from fingers to elbows, wiping part of the head between the hairline and occiput, washing the ears, and washing the feet from toes to ankles. It then examines the representation of these areas in the somatosensory cortex and finds they are represented in an ascending order from lower to upper parts of the cortex.