Advancing to Heavenly Immortal

It was common knowledge that once a Fifth Grade Earth Immortal's Inner World transformed into a star, it would wrest sustenance from heaven and earth, directly absorbing all sorts of power from the world and converting them into nourishment for itself, rather than requiring a cultivator's body as an intermediary as before.

This would place astonishing pressure on heaven and earth, drastically reducing the various forces between them. Thus, to advance to a Fourth Grade Heavenly Immortal, one first had to undergo a World Tribulation. Only by surviving the World Tribulation could one enjoy the power of heaven and earth.

Yet among ten thousand Glory Emperors, not even one might survive a World Tribulation. Thus, Heavenly Immortals qualified to freely enjoy the power of heaven and earth were exceedingly few.

The Tengu Race and the Nine-Lives Cat Race were among the most elite Heaven Races of the Central Plains, as well as its strongest forces. Yet in such vast races, the number of Fourth Grade Heavenly Immortals was only in the four digits. That was after hundreds of thousands of years of development and accumulation, which showed just how rare Fourth Grade Heavenly Immortals were.

Thus, the might of a World Tribulation was easy to imagine. After enduring one, most Glory Emperors would be reduced to ashes, scattering once more to become nourishment for heaven and earth, which would eventually be absorbed by countless cultivators to enhance themselves.

Moreover, Fourth Grade Heavenly Immortals faced equally immense danger when charging into the Upper Three Ranks. Should they fail, their Inner Worlds would likewise disperse into heaven and earth. Only then could heaven and earth circulate without end, rather than being drained dry by endless cultivators.

Song Ankang's World Tribulation lasted several hours. Heaven and earth unleashed hundreds upon thousands of supreme