Considering that many cultivation novels refuse information on them, at least the ones I've read, here is a brief explanation of the cultivation realms known so far explaining Cultivation.
Cultivation: Cultivation is the act of getting more powerful by using Qi in your surroundings, but this can also be named different things like Chakra, Chi, Ki, or even more; this usually leads a character to be able to destroy entire mountains or planets, maybe even a universe this isn't just destruction this is also creation, and most people go for cultivation for longevity and to reach godhood.
Qi Gathering: Qi begins gathering around you, forming a slight aura that occurs once you are born; once you are old enough and learn, you can collect the Qi inside your body and spread it through your organs, skeleton, tissues, and more. People who have gotten to the peak of Qi Gathering are superhuman, able to destroy walls with a punch. Tribulation does not occur.
Qi Condensation: You begin condensing the Qi inside your body into a liquid-like state, which gets ingrained inside your body, and you can now form Qi outside your body. Although limited, it can help create attacks or help you protect yourself. Once Qi is fully condensed, you can destroy entire buildings. Tribulation begins but is weak.
Foundation Establishment: Once Qi fully condenses inside you're body, you will need to build a foundation for the Qi to be on so it doesn't harm yourself and overflow your body, which limits the amount of Qi inside your body and also stops others from injecting extremes amount of Qi inside your body. Only after the Foundation has reached its peak will you be able to destroy city blocks and entire towns with your full power. Tribulation becomes equal to your power. You also have to Harden your skin, Enhance your organs, and reach Bone Forging in Body Cultivation; the names are self-explanatory.
Core Formation/Golden Core: After the Foundation, you need to make a core that surrounds your soul, supplies it with Qi, and protects the soul, making it harder to destroy one's soul and also allows the user to create a womb for their soul to grow inside of. Once the core forms, you can destroy and even create entire Cities. Tribulation begins growing stronger than your power and starts attacking the soul, and Tribulation also lasts longer. It requires the body's purification, empowering it, making it more resilient to damage, and finally hardening the body to withstand Tribulation.
Soul Condensing/Nascent Soul: After the Core Formation and the Core surrounds the soul and protects it, will you be enlightened on how to allow the soul to leave the body and make the soul go from an infant to a child and continue to make it grow until you can create a complete clone of yourself. This will allow you to control both bodies and do double the damage to an opponent, but this will require concentration. You can now destroy mountains. The Tribulation becomes more dense and robust and will last as long as one week. Your soul requires purification, and once it is purified and ridden of all sin, you can advance.
Divine Transfiguration: Once the soul forms and is the size of a child, you can change your body, letting go of mortal weaknesses and being immune to all diseases, illnesses, and poisons. Assassinations via poison are no longer possible, and Your soul. It grows and becomes equal to your size. You can now change your body, how it looks, and even your voice. Tribulation will last for multiple weeks and even a month; along with this, it is getting slower to cultivate in this realm as you need more Qi than before to do so. By this point, your abode contains the correct elemental spiritual energy that will have more information once Kaida reaches it! At this point, your body will stagnate and go without change for long periods.
Mystical Qi Formation: Once Your body has become closer to those of the Immortals, your Qi begins transforming into Mystical Qi/Mana, something more advanced than standard Qi, and allows you to start staying at the current age you already are at. This Qi will enable you to create Artifacts that can do many different things if you understand how to make them and how to use them. Tribulation becomes severe, and artifacts are necessary to keep yourself safe unless your body cultivation is more substantial. At this point, Qi will reform into Mystical Qi/Mana, and standard Qi cannot absorb, from now on, fighting others at your level or killing beasts stronger than you. You can destroy and create large islands or small countries!
Chaotic Star Formation: This is the final step to immortality and the start of your own Mini-World, A world which is created by you inside of your body a Solar System inside of your core one which contains a "star" made of the element/spiritual root you are most affiliated with. And then planets will begin being created every minor realm you increase till it reaches the 9th planet. Then more Solar Systems will form inside your body the higher your realm is after increasing a major realm, a minor realm for the said major realm will become a solar system, and then the realm above that other major realm will create multiple celestial bodies. To the point they gave made their own universe inside their core.
Divine Constellation Realm: You have reached Immortality and can destroy entire continents. You will no longer continue aging but are susceptible to physical and spiritual damage. You can access your own Constellation, One which will boost your power the more divine artifacts you upgrade to your level or create; once the constellation finishes you will be able to create mini suns as a ability or another celestial object or energy depending on how you cultivated. The Tribulation will no longer occur, but you will now have an inner demon. Also, you have now Transcended all of humanity or those still mortal, You are able to destroy a moon.
Void Transcendence: The User will transcend into the void and be able to comprehend it, this will allow the user to hide in the void completely erasing their presence to those below them, if one is of a higher realm they can sense those who hide there, but anyone at the Void Transcendence Realm will not be able to sense those who are higher than them in power. The User will no longer have to face Tribulations and instead are able to create their own tribulations as one of their powers, by this point the User can manipulate every element including Light and Darkness. The user can also destroy Moons and small planets.
Supreme Qi Formation: The User's Mana will upgrade into Spiritual Energy, it allows the user to become a lifeform like no other turning them into a Spiritual Lifeform able to interact with Fairies, Pixies, and many other creatures which are Spiritual, The user is now able to Transcend into the Celestial Realm where Most Higher Beings reside, The User is now able to create their own Galaxies inside their body and they can destroy Large Planets about the size of Jupiter.
Godly Ascension Realm: The User once reaching the Godly Ascension realm is able to create their own creatures which they are the rulers of and can choose what is put in there, though this is limited to a singular planet of their choice which has to have good enough conditions, the User needs to take care of the life carefully while also giving them ways to advance inside the world. They are able to destroy Multiple Stars in a single attack and can survive in space.
Universal Absorption Realm: The user is now able to absorb energy from the entire universe and advance their cultivation using this to try and reach the Dao and understand it, once a person reaches this realm will they be able to create their own Mana and Qi to spread across the world if they so desire as they will lose nothing if they do this. Anyone at this realm will be considered a Martial Emperor due to the changes Mystical Qi Formation is not considered a Martial Grandmaster, The user will be able to destroy entire Galaxies after reaching this realm with a singular attack. But Inner demons will come back to stop them from advancing.
Infinite Empyrean Realm: The User is at the top of Cultivation for the Mortal Realm and is no longer considered a Mortal but instead considered a Demi-God after the User reaches the highest realm of Infinite Empyrean will they be forced to go into the Celestial Realm to truly become a god and start cultivating higher there. The user is able to destroy Universes in a singular attack and can now move inside the 4th dimension seeing those who move within the confines of time as slow choosing how fast they move for them. Cultivation is done now;
let's go over to the Gods.
Now, the Gods!
Gods are put into three categories: low-order gods, Gods, and high-order Gods. Low-order gods have little importance but are still governors of concepts. Which is for the convenience of lower beings. To some extent, gods are those like motherhood, thunder, fire, and more. Lastly, high-order gods like Mother of Genesis or Lord of Cultivation exist. As for Realities True Emperor, they exist beyond these usual gods :3
Magic Names
『Ahura』- Used to create a fist and shockwave which bursts the opponents eardrums and then slams them into a wall or send them flying using enough force to crack their Core at the center of their body.
『Nira』- The Use of Pocket Dimensions
『Tempera』- The use of Time Magic and Stopping Time.
『Inverse Tempera』- The reversing or forwarding of Time.
『Reversed Causality』- The Removal of one from the Past and Future to make them immune to the abilities of Time Abilities.
『Temporal Eclipse』- The ability to stop Time for beings which are within the fourth dimension or higher.
『Spatial Movement』- Moving through Space and Coordinates, specifically called teleportation by some.
『Mazda』- The Use of Increasing or decreasing Gravity or even removing it as a whole.
『Demon Gods Punishment』- The ability to use Illusions which give the person entrapped in it a entity strong enough to beat them, it is usually used as a trial.
『Ramurious』- The use of the Element of Magic and creating a stronger version of these elements, it expands one elements including the periodic table of elements or more.
『Limitless』- The use of Imagination to create or destroy.
『Mana Detection』- The Detection of Mana, Qi, and Spiritual Energy.
『Cosmopasis』- The manipulation of the Cosmos and creation and manipulation of Reality and Physics.
『Soul Destruction』- The Destruction of another person's soul or the reshaping of the soul.
『Primordial Elements』- The manipulation of Light and Darkness
『Zenos's Curse』- The Erasure of objects or people down to their Concept and History.
[Saying or using the magic chant will boost it's abilities, once someone gains magic they will have this engrained in their memory even if someone tried erasing it.]