"Ahu" are stone platforms on which many moai sit. There are 313 known ahu and 125 of these carry moai. The biggest, Ahu Tongariki is 220 m (720 ft), and had the most (15) and tallest moai.
You are reckless, and desire grows. But the master is wakeful. He watches his body. In all his actions he discriminates, and he becomes pure. He is without blame.