The human race on Pangu Continent valued transmigration the most. The belief was buried deep in their blood. To them, a newborn baby was the gift of the heaven and earth, the creation of nature. They lived and reproduced on Pangu Continent, but they all ended up in dust.
All human beings came from nature, and when their lifespan was over, it was natural for them to give themselves back to nature. Therefore, all the people of Great Yu, including the Human Emperor, were buried directly after their death, and there were no luxurious coffins or magnificent imperial tombs. Even the Human Emperor's corpse would be mixed with the dirt. Because of that, Great Yu paid the most attention to worshiping their ancestors' souls, instead of the custom of sweeping tombs.