~ Gemini (Mutable sign) ~ • • First Decanate: May 21st - May 31st. This time period is double ruled by Mercury. This amplifies the personality characteristics of the individual born during this phase. You have the qualities of sharp mental energy. Logic and reason is how you think, work, and … Continue reading Astrology and Tarot Series #3: The Suit of Swords and their Astrological Decanates.