After all, the Heaven's Heart of this age was ultimately not the Heaven's Heart of ancient times.
The existence of the Heavenly Evolution Sacred Beast, the construction of this cage, had tied up far too much of the Heaven's Heart's power.
Great Heng's existence was also a colossal entity in the Cultivation World, one capable of suppressing an entire world.
Just ten thousand years ago, an accident finally occurred.
Perhaps some mutation had arisen within chaos, and a fragment of a True Spirit's remains drifted to the edge of the world.
Given Great Heng's scale, there was no doubt that this fragment of a True Spirit's remains was discovered by that generation's Heng Emperor at the very first moment.
Strictly speaking, this so-called fragment of a True Spirit's remains could not even be considered actual remains. It could only be called a piece of True Spirit flesh.
It was merely a few feet in size.
Yet no matter how insignificant it was, it still belonged to a legendary True Spirit!
An Innate Divinity born from chaos and dwelling within the Chaotic Void! According to all manner of legends, such Innate Divinities were terrifying beings of at least the fifth tier from birth—perhaps even the sixth, seventh, or higher.
Though the Heaven's Heart's surveillance was ever-present, it had a fatal flaw.
That was, Outside the World, the Heaven's Heart's surveillance would be greatly affected.
And although that Heng Emperor of old harbored no heart of betrayal under the influence of the Celestial Heart Imprint, a True Spirit was an existence of unfathomable profundity.
Even a mere piece of flesh possessed enough mystery to completely block the Heaven's Heart's influence.
Thus, when the Heng Emperor appeared outside the world, the Heaven's Heart's surveillance was affected. When he approached that piece of True