In a perfect world, you start by relying on your own strength.

As the inner world was opened up, the vast and pure source of heaven and earth surged like a river, circulating and turning within Shi Geng's body.

Shi Geng focused his mind and looked inward, clearly sensing that the primal power of the inner world was permeating every inch of his flesh and blood, and his whole being was undergoing a comprehensive baptism of the primal power of the inner world.

The flesh and blood are constantly being reorganized and condensed, and every inch of it radiates a brilliant light. The potential of the physical body is rising steadily, and the innate talent and aptitude break free from the limitations of one's birth.

His eyes were shining, giving rise to an extraordinary ability to see through everything. The changing winds and clouds in the outside world, the slight movements of mountains and rivers, and the subtle Dao patterns hidden in the void all fell into his eyes. He could even vaguely see the most subtle fluctuations of the laws between heaven and earth.

Not only his physical body, but his soul was also undergoing a mysterious transformation. The origin of heaven and earth flowed through the depths of his sea of ​​consciousness, and the layers of impurities on his soul were completely peeled away, making his soul clear and lustrous, like a crystal pearl.

With a single glance, he could discern the waxing and waning of Yin and Yang; with a single thought, he could perceive the hidden mysteries of his surroundings. His soul was seamlessly integrated with the microcosm within his body, and the inner and outer universes were interconnected. His entire being seemed to be in harmony with the Dao.

The aura emanating from Shi Geng surged in layers, and the microcosm within his body resonated faintly with the macrocosm outside.

This transformation lasted for more than a month. Suddenly, Shi Geng stood up, and the inner world that had formed within him revealed strange phenomena to the outside.

This universe, constructed from the very essence of heaven and earth, did not expand recklessly. Instead, it condensed and encircled him within a hundred feet. The radiant glow surged and shone like the dawn's first rays, and layers of hazy, precious light covered his body, making him appear like a god bathed in the glow of the morning sun.

The origin of heaven and earth transformed into specks of light that floated and swirled along with the mist of light, entangling his strands of black hair. Each strand of hair was covered with a layer of translucent and luminous light, which trembled in the wind and scattered specks of light.

The inner world slowly expanded outwards, causing the surrounding air to tremble slightly, and the area within a hundred feet seemed to be enveloped by a miniature world.

Within the hundred-zhang territory enveloped by his inner world, Shi Geng's mind was closely connected with the outward-radiating inner world, and a feeling of controlling the universe arose from his heart.

Every blade of grass and every tree within a radius of a hundred feet, every wisp of air and every speck of dust, even the subtle laws of heaven and earth wandering in the void, were clearly reflected in his sea of ​​consciousness. The movement of all things was within his control.

The gentle breeze rises and falls, the earth and stones tremble slightly, all at the whim of his mind; the surrounding spiritual energy gathers and disperses with his thoughts.

It was as if, within this realm covered by the inner world, he was the sole ruler of heaven and earth, and all things in the world were subject to his control, their birth, death, movement, and stillness all determined by his single thought.

"This is what you created? It's certainly quite ingenious."

Just as Shi Geng was still immersed in the wonderful feeling of being in control of the universe, the ethereal voice of the Willow God suddenly came.

His gaze fell upon Shi Geng, and the hidden mysteries of his inner world were instantly seen through.

Even though he had seen all sorts of amazing talents, Liu Shen couldn't help but secretly admire them. Ordinary cave cultivators only build caves as the foundation for spiritual transformation.

This little guy, however, took a different path, forcibly refining all the origins of the Cave Heaven Realm within himself, creating a small world within his own body. He has already forged his own way, and his talent is truly astonishing.

However, this achievement was merely a slight surprise to Liu Shen, who had experienced countless eras and witnessed the rise and fall of countless geniuses.

It's just a small, nascent universe; it's still a long way from evolving into a true, vast world.

The willow branches swayed gently, and the Willow God spoke calmly: "To be able to open up this path in the Cave Heaven Realm, you are unique in all of history."

Shi Geng bowed deeply to Liu Shen, his expression full of respect: "I was able to successfully open up the inner world entirely thanks to Liu Shen's great help. If it weren't for your protection, I would have died long ago."

Recalling the entire process of opening up the inner world, Shi Geng couldn't help but feel a wave of fear. The massive amount of cave heaven origin was out of control and rampant, and the violent power almost tore his flesh and blood apart. He couldn't suppress it on his own. If it weren't for Liu Shen's intervention, he would have been crushed into dust by the vast cave heaven origin, leaving no trace of his body.

"I was just offering some help along the way. Ultimately, your own abilities played a major role in getting you out of this situation."

After she finished speaking, Liu Shen fell silent.

Seeing this, Shi Geng stopped making a sound and focused his mind on his inner world, carefully sorting out the various insights he had just gained from the breakthrough, letting the source of his inner world slowly circulate and nourish his body and soul.

Under the constant nourishment and immersion of the inner world's origin, his physical body and soul did not need to deliberately meditate or cultivate, but were constantly tempered and strengthened on their own.

The body and the microcosm within the dantian are perfectly integrated and in sync. Following the great trend of creation, it is refined and tempered bit by bit, all for the purpose of forging an unparalleled divine body that can encompass the universe and bear the entire world.

Moreover, the speed of this transformation will increase with the expansion of the inner world's territory. With each inch the inner world extends outward, the reserves of origin become thicker, and the pouring out of the essence of creation becomes more and more magnificent, causing the rate of improvement of the physical body and the soul to surge layer by layer.

Even now, with the inner world still in its infancy, it has already brought about such a terrifying transformation of the physical body and soul. If the inner world were to expand infinitely in the future, evolving into mountains, rivers, the sun, the moon, and the stars, and truly taking shape as a complete great world, it would be unimaginable how terrifyingly powerful one's strength would rise.

Thinking of this, Shi Geng felt a surge of excitement in his heart, his face showing undisguised excitement, and his eyes shining brightly.

Having a self-contained world within one's body is equivalent to holding the endless source of creation in one's hands, laying the most important foundation for the path ahead, making everything done before worthwhile.

Shi Geng suppressed his turbulent emotions and sank his mind directly into his inner world. A hundred-foot-wide independent territory unfolded in his spiritual vision. The rudimentary form of heaven and earth was already clearly defined. The sky hung above and the earth solidified below. Wisps of vast and chaotic energy swirled around the spatial boundary, hazy and ethereal. However, all those restless and disorderly chaotic mists were blocked by an invisible and intangible barrier between heaven and earth.

The barrier is a boundary membrane that evolves spontaneously in the nascent inner world, maintaining the stability of the realm. Outside the barrier, chaos surges, while inside, spiritual energy is abundant and moist. The source flows slowly underground like a stream, constantly nourishing the entire small world and in turn nourishing his physical body and soul.

Shi Gengxin explored every corner of the inner world, his gaze finally settling on the edge of the misty boundary. He could clearly sense that the entire small world was growing, slowly expanding its territory outwards at all times, and possessing the potential for self-evolution and growth from birth.

However, the inner heaven and earth are still in their infancy, and their origins are pitifully shallow. Their expansion is extremely slow. Half a day has passed, and the entire territory has only extended outward by less than one meter.

Strands of chaotic energy were slowly absorbed by the boundary membrane, transforming into pure primordial energy that settled on the earth, gradually helping the entire microcosm grow.

"It takes too much time to evolve on its own. If we want our inner world to grow rapidly, we must draw nourishment from the outside world."

Shi Geng pondered to himself, "When the inner world is first created, it is already growing on its own, but the speed is too slow. If it wants to grow stronger quickly, it needs to draw nourishment from the outside world."

These things can be various rare and precious materials, or magical techniques containing the laws of heaven and earth, or even the origin of ferocious beasts.