The Omnissiah is a central figure in the beliefs of the Adeptus Mechanicus, a faction within the Warhammer 40,000 universe. The Omnissiah is viewed as the Machine God, representing the divine aspect of technology and the worship of machines. Followers believe that the Omnissiah embodies the perfect union of flesh and metal, guiding them in their quest for knowledge and technological advancement. In the Imperium of Man, the Omnissiah is often associated with the Emperor of Mankind, though interpretations may vary. The Adeptus Mechanicus sees the Omnissiah as a source of inspiration for their rituals and practices, emphasizing the importance of preserving and understanding ancient technology.