Gu Immortal

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Gu Immortals are Gu Masters who ascended from their mortal state. The ascension process is highly dangerous and suicidal if not prepared properly for and only a select few are able to make their attempt at it and be successful. However, if they succeed, they will be able to further their understanding of the Great Dao and explore its depths, untouched by mortals. During ascension they will undergo a deep transformation, their bodies would change as dao marks would appear on them and their crushed mortal aperture would be renewed into a unique immortal aperture with an isolated space and a blessed land located inside. From now on their immortal aperture would produce immortal essence instead of primeval essence. Similar to the earthly calamity and heavenly tribulation which descended during their immortal ascension, such calamities and tribulations would descend periodically inside their immortal aperture, threatening the life of the Gu Immortal. But with every such challenge, a corresponding reward would be bestowed upon them in the form of precious dao marks. With the immortal essence, their immortal aperture produces, they would be able to use the fragments of the Great Dao in the form of Immortal Gu. Immortal Gu are nothing more than an aggregate of dao marks, these dao marks can resonate or interfere with the dao marks of the Gu Immortal. If they 'harmonize', the Immortal Gu's effect is amplified if they interfere the effect is weakened. The number of dao marks also directly reflect the strength and rank of a Gu Immortal, the more dao marks of one path the stronger the Gu Immortal. A Gu Immortal is unimaginably more powerful than a mortal Gu Master, being able to wipe out armies of Gu Masters with ease. If a Gu Immortal dies they leave behind their immortal aperture which can be inherited by anyone lucky enough to do so. If the Gu Immortal had an obsession before death it will turn into a land spirit or heavenly spirit, that would manage the immortal aperture in the absence of an inheritor.

For more complementary information please consider visiting:

* Immortal Ascension
* Immortal Cultivation
* Blessed Land
* Calamities and Tribulations

### The Way of Immortal Cultivation

When mortal Gu Masters cultivate, they nurture their apertures, when Gu Immortals cultivate, they nurture their immortal aperture.

There are many different ways one can nurture an immortal aperture but the ultimate goal is the same, that is to make the immortal aperture's small world more vibrant and diverse. Building habitats and creating suitable living conditions for beasts and plants, planting different varieties of plants inside it, bringing in more animals, improving the cycle of life and establishing a proper food chain, and nurturing and feeding more varieties of Gu. The more prosperous the immortal aperture, the greater the life force it would have, and the faster immortal essence would be produced inside it.

The general steps to develop and nurture their immortal aperture are as follows:

1. Establishing mortal resource points, to produce mortal Gu, mortal Gu materials, and ordinary beasts and plants.
2. Creating immortal resource points which satisfy the feeding of Immortal Gu.
3. Creating a completely self-sustaining ecosystem by planting immortal plants and raising immortal beasts.
4. Producing enough resources for external trade and earning profits.
5. Producing Immortal Gu naturally inside the immortal aperture.
6. Raising variant humans and humans, and produce Gu Immortals among them.
7. Producing Lifespan Gu.

The other major aspect is the accumulation of dao marks inside the immortal aperture. To accumulate dao marks the most common method is to undergo the regularly appearing calamities and tribulations. The quantity of dao marks as well as which path's dao marks a Gu Immortal receives can be influenced by the number and amount of resources inside the immortal aperture as well as to which path the resources belong to.

For more complementary information please consider visiting Cultivation and Calamities and Tribulations.

### Immortal Aperture

Immortal apertures (also called immortal fetuses) of rank 6 and rank 7 Gu Immortals are known as blessed lands, and immortal apertures of rank 8 and rank 9 Gu Immortals are known as grotto-heavens.

When mortal Gu Masters want to advance to become Gu Immortals, they crush their mortal aperture and in its place, an immortal aperture will form after their successful ascension. Immortal aperture is a qualitative evolution of the mortal aperture, it is like the creation of a whole new small world inside the Gu Immortal. The walls of the immortal apertures are the walls of heaven and earth which isolate the inside and outside. There is almost no outside force that can influence the world inside. The Gu Immortal can place their immortal aperture in the outside world when doing so they are automatically placed inside it and can't leave without placing it back inside their body. A placed or 'fallen' immortal aperture does not occupy any outside space and is 'invisible' if no special investigative method is used.

If a Gu Immortal's lingering obsession is left behind when they died, it would combine with the heavenly power inside the immortal aperture and become the land spirit. Every immortal aperture is unique, it is a part of the Gu Immortal's body. In some ways, even if a Gu Immortal dies, the land spirit and immortal aperture that they leave behind could still be considered as a strange form of life extension for them, in other words, once the Gu Immortal dies, the immortal aperture of Gu Immortal will remain in the Gu world as a small 'side' world, while the Gu Immortal's obsession will give birth to a land spirit which is bound to this world.

Immortal Apertures all possess origin core, they are the foundation of the small worlds itself as well as the gu immortal's fighting power. It's the source of immortal essence and its progression would improve the quality and amount of immortal essence. Once the origin core is drawn out, the space of the immortal aperture would shrink, primeval energy would dwindle, and lifeforms would die en masse.

#### Immortal Aperture Self-Detonation and Annexing

Just as the life and cultivation of a mortal Gu Master, the life and cultivation of a Gu Immortal does not lack fights and battles. Rarely do Gu Immortals fight to the death but when that happens and one is victorious, great spoils can await the victor such as the immortal aperture of an enemy. The Gu Immortal has now three choices of what to do with the immortal:

1. Inheriting the immortal aperture and managing it like their own.
2. Placing the immortal aperture inside their own which causes the enemy's immortal aperture to self-detonate, transferring all the contained dao marks into the victor's immortal aperture.
3. Annexing the immortal aperture which adds the space (and everything contained inside it) to their immortal aperture as well as a portion of the enemy's dao marks. They will also skip a number of calamities and tribulations (the number may vary depending on how many calamities and tribulations the annexed immortal aperture has undergone).

The first two options are straight forward if a land spirit exists the inheritance condition needs to be fulfilled or the land spirit needs to be destroyed and self-detonating an enemy's immortal aperture has no requirements. But if a Gu Immortals wants to annex they have to fulfill an array of stringent requirements:

1. Only a greater immortal aperture can annex a smaller one.
2. Dead immortal apertures can't annex other immortal apertures (including dead immortal apertures).
3. Annexing an immortal aperture requires a high enough attainment level of the path corresponding to the immortal aperture. To annex a rank 6 transformation path immortal aperture, one needs to have at least master level attainment in transformation path, for a rank 7 it's grandmaster level, and for rank 8 it's great grandmaster level attainment.

The only downside of annexing an immortal aperture is the loss of any land spirit that was previously inhabiting the annexed immortal aperture, and the loss of future potential growth with the skipped calamities and tribulations (receiving fewer dao marks by annexing than through a calamity or tribulation).

#### Grade of the Immortal Aperture

Immortal apertures are divided into four ranks of low, medium, high and perfect, corresponding to blessed lands grades of a small, medium, large and super in size, the more heaven qi, earth qi and, human qi are fused, the higher the rank of the immortal aperture.

(Note: *The rate of immortal essence produced per year refers to the years that pass inside the blessed land. In the outside world, this could be varying amounts of time depending on the time flow.*)

The amount of heaven and earth qi determines the rank the immortal aperture can attain, any qi remaining after the ascension of the Gu Master can interact with the Gu Master's rank 5 vital Gu and possibly with other rank 5 Gu of the same path and spontaneously refine them to rank 6.

 Medium
 High
 Perfect

#### Special Immortal Apertures

**Dead Immortal Aperture** (Only immortal zombie)

* When the Gu Immortal permanently transforms into an immortal zombie, the immortal aperture of Gu Immortal will turn into a dead immortal aperture. The following are drawbacks of a dead immortal aperture:
	1. The dead immortal aperture is unable to produce immortal essence and therefore every bead of immortal essence that the immortal zombie had received during their living state as a Gu Immortal before, will be a precious treasure to the immortal zombie because using one bead of immortal essence would mean one fewer bead left without natural replenishment.
	2. The dead immortal aperture is filled with death energy, therefore all resources and living beings placed in the dead immortal aperture, will after a certain amount of time start to be corroded by the death energy and inevitable crumble, rot and die.
	3. The world of the dead immortal aperture will start to disintegrate until nothing of it remains.
	4. The immortal zombie can no longer annex other blessed lands to expand theirs.
	5. The dead immortal aperture does no longer attract tribulations and therefore the immortal zombie's main source of dao marks is cut and their cultivation becomes stagnant.

**Mystical Phantom Aperture** (Only members of Heavenly Court & Shadow Sect)

* An aperture that does not have a blessed land or grotto-heaven. It is created for storing immortal essence, wills and any rank of Gu, (even rank 9 Gu). The stored immortal essence inside it can also be used to refine and utilize Immortal Gu.
	+ Advantage: A mystical phantom aperture can store any rank 9 Gu without the Gu Master having to worry about the rank 9 Gu bursting the Mystical Phantom aperture.
	+ Disadvantage: A mystical phantom aperture can not be managed and developed like normal a immortal aperture. It also needs to be replenished at set time intervals and could therefore not last forever. It can't contain living things.

**Sovereign Immortal Aperture** (Only Fang Yuan)

* The Sovereign Blessed Land is divided into five regions and nine heavens which is modeled after the Gu World at the beginning of time (Immemorial Antiquity Era). The nine heavens each have a respective color: Red, Orange, Yellow, Green, Azure, Blue, Purple, White, and Black.
* Supreme Rank Blessed Land: The <Sovereign Blessed Land> is divided into ten layers, each layer has a total size of over **33,500 square kilometers (km²)** or **8,278,000 acres** and each layer increases with the Gu Master's cultivation base. The 1st layer is made of landmass which is divided into five regions, while the 2nd to 10th layer that each have a unique color of the nine heavens are empty, with neither soil nor earth. Adding them up, ten layers amount to over **335,000** **square kilometers (km²)** or **82,780,000** **acres** of space. The River of Time's time flow inside the <Sovereign Blessed Land> is 1:60, which is one day in the outside world (Gu World) and equates to two months inside the <Sovereign Blessed Land>. It produces **96** beads of immortal essence with each year passed inside it. In terms of the time in the outside world, it produces **16** beads of immortal essence every day.

**Life-and-Death Immortal Aperture**

* An immortal aperture that is created by using a method, in which many immortal zombie corpses or one immortal zombie corpse of one of the ten extreme physiques is used, in resurrecting from an immortal zombie to a living Gu Immortal. The resulting life-and-death immortal aperture is dependent on which immortal zombie corpses were used for the resurrection, e.g. using strength path immortal zombies will result in an aperture with strength path dao marks. Using an immortal zombie corpse of one of the ten extreme physiques to resurrect, one can acquire a super grade blessed land, but this also bears the danger of suddenly exploding and killing the one during the resurrection.
* The specialty of the life-and-death immortal aperture is that it has two layers, and the calamities and tribulations one would have to undergo, would only have half their original power, yet one would receive as many dao marks as if the tribulations would be at full power.

## Trivia

* Becoming a Gu Immortal does not equate to becoming (biologically) immortal.
* During the ascension most if not all mortal Gu would die and the newly advanced Gu Immortal would, in most cases, be empty-handed as well as most vulnerable during this time.
* After a Gu Master advances to become a Gu Immortal, their foundation's life force would be elevated and their physique would thoroughly raise to a higher level, having a body that is more resilient than that of their mortal counterparts. (They would **not** gain more lifespan as mentioned in chapter 563)
* After ascension they would start producing immortal essence instead of primeval essence, a bead of immortal essence could be regarded as unlimited primeval essence. It meant every single Gu Immortal could control large numbers of mortal Gu, and would never be lacking in primeval essence.

1. ↑ ch. 1489
2. ↑ ch. 1394