Dantian Small World

Biodata

Power Progression

The stages below describe documented changes, rather than formally named cultivation realms.

Nature and Principles

Relationship to a Cultivator’s Dantian

• Shen Duheng explains that every cultivator has the potential to become a small world: cultivation develops that potential, while ascension allows a new world to be opened 12.
• Ordinary Dantian storage accepts objects containing Spiritual Qi. Incompatible Qi can injure the cultivator, making indiscriminate storage dangerous 12.
• Shan Heyuan’s developed world is exceptional. Shen Duheng has never heard of another person whose Dantian became a small world in this way 113.
• Its interior is perceived through Divine Sense. A visitor’s movements do not produce ordinary tactile sensations in Shan Heyuan’s body 12 131.

Difference from Secret Realms

• The West Jing Secret Realm was made by refining a storage Law Artifact together with a dead world; Shan Heyuan’s world develops from his own Dantian 113.
• Before its later transformation, Shan Heyuan must compensate personally for missing natural processes. Shen Duheng identifies this active owner as its greatest advantage over ownerless spaces 127.
• The Realm Spirit later finds it livelier than her own secret realm and less rigid than conventional secret realms 173.
• Its expansion can be measured in months or years, whereas other secret realms may require thousands of years to grow only slightly 173.

Foundational Components

Abilities & Skills

Storage, Intake, and Concealment

• Stores Spirit Plants, weapons, water, Spirit Stones, and living occupants 111 117 126.
• Once fully opened at the Nascent Soul stage, can take in everything within several miles, including terrain and bodies of water. This does not guarantee success against a stronger opponent: Ji Li resists Shan Heyuan’s attempt to capture him 157.
• Prevents stored treasures from leaking detectable traces. When closed, the world is extremely difficult for outside experts to discover 115 116.
• Conceals the Realm Spirit so thoroughly that Shen Duheng cannot sense her presence inside it 117.
• Its spatial power and Breathing Earth presence also help Shan Heyuan hide while stealing Spirit Stones beneath the secret realm’s formation 118.

Terrain and Environmental Control

• Shan Heyuan can generally reshape the interior with a thought, including building a house, digging a water hole, or raising a peak 119 126 145.
• He can adjust Pu Core Fire to change the temperature and turn spirit liquid into mist to nourish crops 151.
• With sufficient Spiritual Power, he repairs damage from an array explosion in less than five minutes 132.
• Early control does not amount to complete natural law: attempts to create a rain cycle fail, and the first artificial spring requires water to be added manually 127.

Spirit Plant Cultivation

• Provides a stable, portable growing environment, allowing plants to continue developing while Shan Heyuan travels 155.
• After the Nascent Soul tribulation, plants nourished by his Breathing Earth–bearing Spiritual Power can grow nearly a year’s worth in one day 147.
• More than ten years of cultivation, nourishment from Shan Heyuan’s true body, Fertilizer Pills, and spirit liquid produce Thousand Powder Grass superior to specimens grown outside for over a century 173.
• Supports pill refinement in a place where Shan Heyuan can control Pu Core Fire more easily than outside 173.
• A complete Heavenly Dao is not advantageous for every experiment: certain experimental herbs are better grown outside to avoid its interference 174.

Spiritual Power Supply and Purification

• Resident Spirit Plants release pure Spiritual Power for Shan Heyuan’s cultivation. Their output becomes insufficient for rapid advancement when his cultivation outgrows their grades 153.
• The world filters impurities from Spirit Plants, allowing him to use Xin Xie’s cultivation method without those impurities clogging his meridians or destabilizing his realm 155.
• After his transformation into a Spirit Plant, it converts spilled cultivator blood into Spiritual Power and replenishes his reserves 181.
• In an emergency, he can consume stored plants, spiritual objects, Spirit Stones, and even the sun and spring to raise his cultivation. This sacrifices the developed landscape and contracts the world around his central tree 181.

Heavenly Dao and Combat Domain

• The Golden Core initially contains the world’s most complete rules. Studying it helps Shen Duheng advance from Early to Middle Nascent Soul 131.
• The world absorbs Tribulation Lightning and retains it in a lightning lake 145 146.
• Shan Heyuan uses its contents to complete the Heavenly Dao Principles in external Tribulation Lightning, greatly strengthening it against Ji Li 158.
• When projected over a battlefield, it forms a domain that greatly weakens powers not under Shan Heyuan’s protection. Maintaining this effect also takes a heavy toll on him 181.
• The domain later prevents Ji Li from escaping and stops his orders from reaching others 183.

Independent Refuge

• Survives the destruction of Shan Heyuan’s physical body and shelters both him and Shen Duheng in the void 159 160.
• Independence does not mean unlimited resources: losing his body severs its connection to outside Spiritual Power, leaving its occupants dependent on internal reserves and stored Spirit Stones 160.
• During that period, its size stops increasing and its evolution stagnates despite abundant life force 166.

History

Realm Spirit’s Captivity

Shan Heyuan and Shen Duheng initially investigate the West Jing Secret Realm to learn more about small worlds. Their escape with its unconscious Realm Spirit turns the Dantian Small World into a concealed prison. Shan Heyuan builds a cottage with confinement talismans, while Shen Duheng seals the captive’s cultivation and repeatedly reinforces her restraints 113 117 119 133.

The Realm Spirit eventually moves freely inside, helps tend Spirit Plants, and gives Shan Heyuan informal lessons on space. Her instruction, combined with outside texts, improves his understanding of how to reshape the world 152 153.

Bodily Destruction and Reconstruction

After the first confrontation with Ji Li, Shan Heyuan burns his body to escape, leaving his Nascent Soul and Shen Duheng inside the damaged world. They recover temporarily in a stone house before calculating safe exit coordinates, since their remaining Spiritual Power cannot sustain them indefinitely 159 160.

Introducing death Qi improves the world but does not resolve its stagnation: life Qi and death Qi remain divided and incompatible. Shan Heyuan ultimately chooses complete fusion with a Spirit Plant rather than restarting cultivation, believing this route will preserve his small world. Refining himself, the tree, and the five-element foundations into a wooden bud leads to his restored body and the world’s unified form 165 166 167 169 171.

Final Battle with Ji Li

In their later battle, Shan Heyuan combines the world’s suppressive domain with tribulation lightning, then consumes its resources to force his cultivation upward. His cultivation rises from Early to Middle Spirit Transformation and continues toward the late stage as the interior contracts 181.

The domain keeps Ji Li trapped until Shen Duheng kills him. After more than fifty days of rest, Shan Heyuan awakens as a Heaven-Supporting Tree over three hundred meters tall and accepts supplies from the major sects to support further growth and test whether he can break the cultivation world’s shell 183.

Associated Individuals

• Shan Heyuan — Creator, controller, and eventual central tree-body; the world’s development is inseparable from his cultivation and reconstruction 95 167 171.
• Shen Duheng — Helps investigate its nature, constructs its artificial spring, cultivates inside it, and supplies the metal-element rib needed for its transformation 113 131 132 168.
• Realm Spirit — Initially a captive, later a plant caretaker and instructor in spatial principles; her return highlights how far the world has advanced beyond an ordinary secret realm 117 152 153 173.
• Ji Li — The principal opponent against whom Shan Heyuan tests its capture, lightning-enhancement, and domain abilities 157 158 181 183.