The meaning for those who built Stonehenge was, he believed, significant. "Eclipses are spectacular events that surely aroused the deepest emotions of our primitive ancestors," said Hawkins. "The light of the Moon, which is, of course, borrowed from the Sun, is cut off. It passes into the Earth's shadow. The Moon turns from silvery white to red. The ancients regarded it as blood red and attributed ominous meanings to it."