The dream of many Grand Ascension stage cultivator and also the beginning of the Immortal World. At this stage one can directly flip over a middle realm.
As a True Immortal, one stop using spiritual energy and use instead immortal spirit energy to fight and cultivate by opening their 30 immortal aperture. They can also begin to comprehend a law of heaven and earth and how to utilize it at this stage (among 3000 laws). Because of the lack of information in the middle realm there is a misconception that everyone who managed to breakthrough the Grand Ascension stage is an Immortal cultivator but in reality there is still a long way in the road to immortality as the True Immortal stage is just the beginning and there is more above it.
However as always cultivators who challenge the heaven shall face his wrath, as the saying goes, the heavens have five decline, the true immortals have three declines. The first Decline, is Immortal Decline, within the body immortal spirit strength is drained for no reason, cultivation base is damaged greatly until the realm finally drops. The second Decline is Body Decline, the mortal body gradually falls apart, the body and spirit weaken, finally is unable to accept immortal spirit energy, until the body explodes and perishes. The third Decline, is Aperture Decline, our aperture deteriorates, this deterioration will spread, invading all of the immortal apertures that a True Immortal cultivator opened laboriously, causing it to be completely decayed. Once all the immortal apertures rot, the body of a True Immortal will then deteriorate, the immortal spirit strength deteriorates, and the cultivator loses his cultivation, finally making the cultivator a disabled person (or a Grand Ascension) thoroughly and the opportunity for a comeback is lost.