Mohamed wears an indigo tagelmust, a cloth that wraps his head and face. The rich color, which rubs off onto the skin, these once fierce Saharan warriors the title "blue men of the desert." For the Tuareg, the tage limust is more than just desert clothing that keeps out the sand and sun; it demonstrates respect and is thought to keep evil6 creatures known as jinns away, as is henna, a reddish-brown coloring used on Mohamed's feet. Henna is also a symbol of purity, and is reserved for a man's first marriage