Ancient Cultivator in Modern World

Khan Paradyne, one who once stood at the apex of the Cultivation World, gets tired of all the killings and schemes, and decides to seal himself. A hundred thousand years later, Khan woke up to find that the world he once lived in had changed. Strange vehicles dotted the skies, skyscrapers that pierced the heavens itself, with the advancement of modern technology. How can an ancient cultivator like him, find a foothold?