Why, Smokey, don't you know that link is just theosophy dreamed up by a she-male named Blavatsky? This stuff isn't really old, it's all Edgar Cayce mumbo-jumbo. And we should not educate people with this stuff because they'd only learn about music theory, Plato, the Egyptians, the Sumerians, mathematics and...well...we can't just go cluttering up their minds with such nonsense when they have math and science tests to fail.