I'm an Aquarius, according to astrology. So the sun should rise into the constellation of Aquarius on my birthday right? It doesn't. It rises into Pisces on that day. Why? Because the whole calendar has shifted off from it's original starting point. The zodiac as we know it was developed in Babylon a long time ago. It originally had 13 months as did most ancient calendars. The month of Ophiuchus was removed when the zodiac was adopted into Europe. So why do some people think it works? It's basically just the psychology of symbolism. We see ourselves and our life in the symbols we create. Why did people see a fish in a certain constellation? Or a water bearer, or a bull? Because it was important to them. Native Americans had constellations based on local animals. Do you think someone in Alaska looks at the night sky and says " Oh, Look a crocodile!" No they saw what was in their mind, their environment. It's the same with Tarot cards. Whatever one comes up, you can find some way it applies to your life. What is the simplest form of divination? It only has two possible results. Flip a coin. Heads or tails? It's not that the coin tells you what to do. But when that coin is in the air, you know how you want it to land.