Key points:

"Breath" - "Breath" exists in the environment and in many items. This is what a Cultivator absorbs into their body to Cultivate.

Credits - a currency onpy used by Cultivators of Rank 1 to Rank 6 in the Mortal Lands. Credits contain "Breath" inside them and can vary in value.

Gold - used by Rank 0 non Cultivators primarily but some Cultivators in Mortal Ramks will use them still.

Centres of Power:

Mind - reinforces the Mind and its mental defenses. Can also increase in size to have a larger Sea of Conciousness. Inside your Mind their is an imaginary space. In that space is an "Sea" that looks like water. The water represents how much "Breath" one can contain in their Mind and is used to cast Spells and Techniques. It can be depleted and the water will drain from the "Sea". By repeatedly "draining" the "Sea" of the "water" will allow it to fill and become larger. Keiser Runes are used to deplete them faster than one normally can and gives greater benefits while using a Keiser Rune to do so. Grants Mental and Spell enhancements.

Dantian - Literally the core and ability for Cultivators to Cultivate. When absorbing "Breath" most of it will go to the Dantian while extra will go to the Mind. Must have Body and Mind one Rank higher before Cultivating to the next rank. Example - Rank 4-Liquid Mind, Rank 4-Solid Body, Rank 4-Gaseous Dantian. The requirements have been met so now the Cultivator can Cultivate their Dantian to Rank 4-Liquid Dantian without negative side effects but can't go to Rank 4-Solid Dantian unless the Mind becomes Rank 4-Solid Mind like the body already is. Improves everything overall.

Body - One must reinforce the Body in their own Body nourishing methods in order to advance. Grants physical and martial techniques enhancements.

Ranks: 

all Ranks and Centres of Powers are in 3 stages.

Examples:

Rank 3-Solid Dantian ---> Rank 4-Gaseous Dantian

Rank 5-Liquid Mind ---> Rank 5-Solid Mind

Rank 4-Gaseous Body ---> Rank 4-Liquid Body

And so on

...

...

Stages within each Rank

Gaseous --> Liquid --> Solid

Cultivation Ranks:

<<<< Rank 3>>>>>

Rank 0

Rank 1 Gaseous 

Rank 1 Liquid

Rank 1 Solid

Rank 2 Gaseous 

Rank 2 Liquid

Rank 2 Solid

Rank 3 Gaseous 

Rank 3 Liquid 

Rank 3 Solid

<<<<<<<< Rank 6>>>>>>>>>

Rank 4 Gaseous 

Rank 4 Liquid

Rank 4 Solid

Rank 5 Gaseous 

Rank 5 Liquid

Rank 5 Solid

Rank 6 Gaseous 

Rank 6 Liquid 

Rank 6 Solid

<<<<< Rank Rank 9>>>>>>>>>

Rank 7 Gaseous 

Rank 7 Liquid

Rank 7 Solid

Rank 8 Gaseous 

Rank 8 Liquid

Rank 8 Solid

Rank 9 Gaseous 

Rank 9 Liquid

Rank 9 Solid

<<<<<<<<<<<>>>>>>>>>>>>

Rank 10

Rank 0 ---> Rank 6 Cultivators reside in the Mortal Lands

When they become Rank 7 they ascend to the Immortal Lands

Mortal Lands scaling:

Rank 4 is common assets in the Heroic Ranks

Rank 5 is the Elders

Rank 6 are the powerhouses of an entire Nation or Organisation

Rank 7 are the godly powers in Mortal Lands for their brief time there but when in Immortal Lands they are common place at the low end.

Rank 8 are the Powerhouses of the Factions and Organisations in the Immortal Lands 

Rank 9 are the peak of the Cultivation journey and they don't involve themselves with anything weaker than them since they travel to a dangerous region in the Immortal Lands only Rank 9 beings can survive and reside within.

Heaven and Earth controls the entire verse but they are Quasi Rank 10 and are at the absolute peak of Rank 9-Solid stage

Power scaling of Ranks:

Rank 0 - Human 

Rank 1 - Superhuman

Rank 2 - Small Building

Rank 3 - Large Building

(Rank 3 is the level of how strong the Dahaka, from Prince of Persia: Warrior Within, is at end game boss battle form. Rank 2 and Rank 1 is how strong the Prince of Persia (2008) four Chosen of Ahrimaan are)

Rank 4 - Small City, passive Flight

Rank 5 - Large City, near Lethal injuries survivability, severed torso survivability varies on individual

Rank 6 - Mountain, Individuality (Dao) Manifestation, survives with half a torso

(Rank 6 beings stronger than Avengers and Justice League from the movie adaptions of DCEU and MCU. King Elbas would trash Captain Marvel and all Avengers and Justice League. He is that strong of a character as a Rank 6 being.)

Rank 7 - Continental, Immortality of Lethal blows, Law Manifestation (Minor Reality Warping based on individual's Law)

Rank 8 - Multi-Continental, can kill many lower Rank beings with ease even in same Rank sometimes in one attack

Rank 9 - Planetary, Resurrection of Rank 8 and lower beings effortlessly in the thousands, manipulates and warps Reality and metaphysical concepts on a Planetary scale, their existence itself creates life and other things by them simplet existing or expressing their power

(Rank 9 are stronger than DC verse Greek Gods but not Hecate, Upside Down Man or CAS Superman level beings. Only stronger than Zeus, Ares and the rest from comics. The Greek Gods in DC verse comics vary in strength from planetary to universal and more. Sometimes Diana or Superman are stronger than them but they are lastly Planetary level of power for the most part.)

Rank 10 - ??? Multi-Solar System? Galaxy? Unievrse?

(No actual feat or proof of power level shown except for the final chapter of Birth Of The Demonic Sword)