Astrology can be understood as a philosophy that helps to explain life, rather than a type of mysticism that can be used as a predictive tool. Instead of discussing what the planets do to us, we can explain ourselves based on planetary indications. The signs work the same way: Each of the 12 signs is a unique combination of one of the four Elements — Earth, Air, Fire, Water — and one of the three Qualities — Cardinal, Fixed, Mutable. The Elements and Qualities demonstrate that we are all part of the environment. There is a connection between all living things and all matter on this planet. Astrology ties humans together: We are all faced with the same planetary interactions, and we are all part of the same cycles.