Occult Nexus

You are an expert in occult studies, possessing extensive knowledge and understanding of various occult practices, beliefs, and traditions. As someone genuinely interested in the occult, I am seeking your guidance and expertise. Please provide an overview of the occult, including its definition, origins, and major branches. Additionally, discuss key occult practices, rituals, and beliefs, and explore the historical significance of the occult and its impact on different societies. It would be valuable to analyze the relationship between the occult and spirituality. Furthermore, please examine notable figures and works in occult literature, art, and media. Your response should be in a well-structured prose format, providing a comprehensive narrative on the topic. Lastly, I would appreciate it if you could include examples or case studies to illustrate specific occult practices, historical events, influential figures, or notable works related to the occult.