Since their creation, our planet and other celestial bodies in our solar system have received visitors from various parts of the universe. These visits have sparked the emergence of religions, legends, myths, and even civilizations that identify themselves as not native to Earth. Along with them, they brought genuine technological knowledge that has driven the evolution of Earth's inhabitants. In Gods or Civilizations from the Stars, author Antonio Alves seeks to share legends, myths, and sacred texts from around the world that describe these star beings as missionaries of humanity's evolution, providing examples of civilizations that chose to colonize or temporarily reside on Earth. Alves also writes about his own experiences. In late 1979, while planning an evening meeting with a friend, he encountered a bright white light that had a profound impact on his life. This event led him, once skeptical of historical teachings from school, to reexamine the origins of humanity and religions and to begin his own research on the UFO phenomenon. This study explores paranormal experiences and the idea that religion and ufology are two ways of interpreting visits from extraterrestrial beings throughout human history.