Zalmoxis is a deity worshipped by the ancient Getae and Dacians, tribes that inhabited the regions of modern-day Romania and Bulgaria. He is often associated with the afterlife and is believed to have taught his followers about immortality and the soul's journey after death. The teachings of Zalmoxis were said to emphasize the importance of the soul's eternal nature, which influenced the spiritual beliefs of these tribes. Some historical accounts suggest that he was a historical figure who later became deified, reflecting the blend of mythology and reality in ancient cultures.