Ancient mighty figures sealed their mountain gates, intending to transform into corpses for resurrection. If all went as planned, this process would generally last for hundreds or even thousands of years, depending on the rebirther's strength; the stronger they are, the more power is required for the process!
Hence, when such an ancient portal and secret realm remain unnoticed for hundreds or thousands of years and suddenly open, it causes an uproar. Every time such a portal is opened, it presents a rare opportunity—a great chance.
However, such matters are hard to define. Those lucky enough to enter such portals experience different outcomes—some live, some perish, some prosper greatly, while others return empty-handed. Despite these portals being places where ancient mighty figures aim for corpse resurrection, they are not devoid of danger; indeed, they are perhaps more perilous than so-called forbidden zones and danger areas.
