What were Rudolf otto beliefs?

Rudolf Otto was a German theologian and philosopher best known for his concept of the "numinous," which describes a profound, non-rational experience of the divine. He believed that religious experiences encompass both a sense of awe and fascination, as well as fear and dread, often described as the "mysterium tremendum et fascinans." Otto argued that these experiences form the foundation of religious feelings and practices across different cultures. His work emphasized the importance of the subjective experience of the sacred, rather than merely doctrinal or institutional aspects of religion.