{Note: Realms from the Body Tempering Realm to Immortal Ascension Realm have 9 sub-divisions each.}
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Human Cultivation Realms
1) [Body Tempering Realm]
Stages 1-3:
The first 3 Stages are dedicated only to strengthening the Martial Artist's body, going beyond normal levels (Olympic level strength).
Stages 4-6:
At the 4th Stage, one develops the ability to sense the World Energy in the atmosphere, and this sensation only grows stronger as they reach the 6th Stage.
Stages 7-9:
At the 7th Stage, cultivators start to naturally gather World Energy, absorb it, and use it to generate Yuan Qi in their Dantian and meridians. However, cultivators are unable to consciously speed up their absorption of World Energy or their restoration of Yuan Qi.
2) [Initial Element]
Cultivators at this realm have gathered and accumulated enough Yuan Qi to use in Martial Skills. Though the Qi can't leave the body yet, it can be used to strengthen their body.
3) [Qi transformation Realm]
Upon reaching this realm, cultivators get a massive boost in Yuan Qi, and can finally release it outside of their body in order to use it for attacking, defending, and Etc. This is also the first realm in which a cultivator experiences a World Baptism.
Due to the massive increase in their Yuan Qi stores, cultivators often have a harder time controlling and balancing both their state of mind and temper in the beginning stages of promoting to this realm. As such, they are more prone to getting into fights(this applies less to those with strong will power like Yang Kai or Su Yan).
4) [Separation and Reunion Realm]
These cultivators are simply more adept and powerful in their use of Yuan Qi than Qi Transformation Stage cultivators, in addition to being capable of storing more.
Upon reaching the Separation and Reunion Boundary, two paths appear in one's mind. This state is known as Separation and Reunion.
If one drowns theirself in the thrill of seeking power, they become unable to suppress their raging emotions and desires. This is called Becoming Devil(Devil's Path).These people are generally more brutal, bloodthirsty, and violent.
5) [True Element Realm]
To reach this realm, one needs to purify their Yuan Qi into the much more powerful and versatile True Yuan Qi, aka True Qi.
This not only increases their power and combat efficiency, but allows them to use Secret Techniques and perform other more complex tasks that are simply impossible for a cultivator to accomplish with Yuan Qi.
For example, the True Element Boundary is known for being the first stage at which all cultivators can fly due to the power and versatility of True Qi.
6) [Immortal Ascension Boundary Realm]
After achieving this realm, one opens and creates both their Knowledge Sea and Divine Sense. A Knowledge Sea acts as a storage reservoir for one's Divine Soul, and holds all of their knowledge, memories, and techniques.
A Divine Sense allows one to see without their eyes, and can also be used to attack another's Divine Soul.
If one meets with a special set of circumstances like Yang Kai, it is possible to gain a Divine Sense prematurely.
As said by Meng Wu Ya, even if a True Element Boundary cultivator develops a Divine Sense for any variety of reasons, they usually can't keep it since they cannot nourish it without a Knowledge Sea. Yang Kai manages to bypass this due to the Heaven-defying Soul Warming Lotus. This Heavenly Treasure constantly refuels his Divine Soul, Knowledge Sea, and Divine Sense in addition to both strengthening and tempering them.
7) [Above Immortal Ascension Boundary/Transcendent Realm]
After accumulating enough understanding of the Heavenly Way, one can eventually reach this realm. At this realm, one's life span goes beyond the limits of average mortals. Likewise, they can live for hundreds of years.
In this realm their essence/existence starts to change and become stronger by integration of Heavenly laws they understand.
In Yang Kai's original world, cultivators did not have a name for this realm for most of their history, and simply referred to it as the "Above Immortal Ascension Boundary." Before the 'Demon Lord Yang Bai,' no native of the world had ever been known to reach the 3rd Order Transcendent Realm, which he accomplished by inheriting the legacy of a dead Demon General from Tong Xuan Realm.
8) [Saint]
Like when a Separation and Reunion Boundary cultivator wants to enter the True Element Boundary, a 3rd Order Transcendent Realm cultivator has to purify their 'True Qi' into 'Saint Qi' before they can enter the Saint Realm. Once a cultivator both completes this process and has a high enough comprehension of the Heavenly Way, they can promote to this realm.
Only in the 3rd Order of this realm are most cultivators' flesh bodies strong enough to survive in the Starry Sky without a Defensive Artifact.
.....
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Monster Cultivation Realms
[Tier 1]
Equivalent to Initial Element Realm
[Tier 2]
Equivalent to Qi Transformation Realm
[Tier 3]
Equivalent to Separation and Reunion Realm
[Tier 4]
Equivalent to True Element Realm
[Tier 5]
Equivalent to Immortal Ascension Realm
[Tier 6]
Equivalent to Transendant Realm
[Tier 7]
Equivalent to Saint Realm
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[Pills and Herbs]
{Effective Till (...)}
1) Common Rank (Initial Element realm)
2) Earth Rank (Separation and Reunion Realm)
3) Heaven Rank (True Element realm)
4) Mysterious Rank (Immortal Ascension Realm)
6) Spirit Rank (Transcendant Realm)
7) Saint Rank (Saint Realm)
.....
[Artifacts and Arrays]
{Maximum level of power they could utilize before damaging (...)}
1) Common Rank (Low Qi Transformation realm [1st–3rd])
2) Earth Rank (Mid True Element [4th–6th stage] realm)
3) Heaven Rank (Early immortal ascension realm [1st–3rd stage])
4) Mysterious Rank (1st order Transcendent)
6) Spirit Rank (1st order Saint Realm)
7) Saint Rank (1st order Saint King Realm)
{A-Note: Limited realm power the weapons can handle are stated in brackets '(...)'}
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{A-Note: I took the information from martial peak fandom. The information of the later realms will be uploaded when it is relavent.}