As a water sign, Scorpio is ruled and driven by emotions. Perhaps the most profound of the water signs, Scorpio is the definition of “still waters run deep.” What’s going on above the surface is rarely an indication of what’s going on underneath. This is especially true in Scorpio’s complicated heart and mind. To truly understand watery Scorpio is similar to trying to understand the depths of the ocean—even after having been explored for millions of years, ocean explorers still haven’t found out even a fraction of what there is to know!