Renowned author Manly P. Hall covers a range of esoteric history, showcasing the significance behind numerous instances of important stones. He discusses the ancient Greeks, Saturn, logan stones, the philosopher's stone, Moses and the tablets of law, the Qabbalah, the pillars Jachin and Boaz, the Holy Grail, lodestones, the four ages of Greek mystics, magical rings and talismans, gems and the zodiac, days of the week and planets and the gems that correspond with them as well, and much more.