The Mystery Schools of antiquity were based on the idea that life or consciousness is the active force behind all phenomena in the material world. This was also reflected in the science of that time. And now once again, this idea is beginning to penetrate areas of contemporary science, such as, for example, in physics, chemistry and biology. What can we learn from universal science, based on the Ancient Wisdom, in the further development of a new scientific mentality? Can we formulate sustainable, universal principles for a spiritual science, which also provides points of departure for our ethical sense of responsibility?