For ten thousand standard years, His will has been the bedrock of human civilization, guiding billions upon billions of souls through an endless night of war and hardship. Even the Space Marines, His genetically modified sons, view Him as the Emperor of Mankind, their divine creator and the reason for their existence.
Emperor of the Imperium of Man in the Grim Darkness of the 41st Millennium
To the Imperial citizens and the Ecclesiarchy, He is the God-Emperor, a divine being who suffered for mankind's sins and offers a promise of salvation in the afterlife. The Horus Heresy and the Fall The golden age shattered with the outbreak of the Horus Heresy, the galaxy-spanning civil war that remains the darkest stain on Imperial history.
His primary goal was the unification of Terra and the end of superstition, laying the scientific and rational foundation for a new era of human progress. In a final, desperate act, the Emperor confronted his fallen son, unleashing a psychic blast that crippled Horus but left the Emperor mortally wounded.
Emperor of the Imperium of Man Grim Darkness: Supreme Ruler in the Horus Heresy
From this throne, His psychic presence, known as the Astronomican, serves as the beacon for all Imperial navigation through the Warp. According to the Imperial Truth, He revealed Himself in the late 30th Millennium as a psychic giant of immense power, claiming to be the reincarnation of the gods of ancient human mythologies.
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