They don't believe in a god, but they do believe that if you can elevate your soul, rid yourself of karma, that you can come back as a deity, as a god yourself before you achieve perfect moksha. Now they also believe you can come back as a human or an animal. They believe you can come back as a hellish creature and they believe you can come back as a subhuman, like literally like a plant. And all of these provide your soul opportunity to achieve moksha. Now it also represents the four different infinite aspects of the soul, which Jainists believe are infinite knowledge, that the soul has infinite perception, the soul has infinite happiness and infinite energy. Now above the swastika you have three dots, which represents basically the straight path for Jainists to achieve moksha. This would be belief, knowledge and conduct.