The moment I stepped past the sect's outer gates and into the forest proper, my lungs filled with air so pure it almost made me dizzy. Every breath felt like drinking crystal-clear water after a lifetime of soda.

  The oxygen content had to be higher here. Thirty percent instead of Earth's twenty-one? Or was it the complete absence of carbon monoxide, sulfur dioxide, and the thousand other pollutants I'd been breathing since birth?

  I found myself stopping every few steps, marveling at how different everything felt. The sunlight filtering through the canopy seemed cleaner somehow.

  Did this world have the same nitrogen-oxygen ratio? The same atmospheric pressure?

  If the fundamental constants were different here, if gravity was slightly stronger or weaker, that could explain why cultivators could perform superhuman feats once they adapted their bodies enough.

  Wait, what if this wasn't even the same universe?

  What if cultivation worked because the laws of physics themselves were different here? Maybe what they called qi was actually some kind of exotic matter that didn't exist in my original universe, something that could store and transfer energy in ways that violated Earth's conservation laws.

  The implications were staggering. If I could figure out the actual mechanism behind qi and map out its properties, then I could potentially revolutionize how cultivation was understood and practiced.

  I was getting so excited that I nearly walked into a tree.

  Focus, Cao Chang. Herbs first, then theorize about reality.

  The illustrated guide showed dozens of medicinal herbs native to this forest, and I found myself collecting samples of everything I came across. Spirit Grass, which apparently contained trace amounts of qi that could supplement meditation. Red Root Flowers, used in healing salves. Seven-Colored Mushrooms that were either medicinal or hallucinogenic depending on preparation method. My pouches were quickly filling with botanical treasures.

  The book had a fascinating section on herbal combinations. According to Scholar Wu's research, certain herbs could be combined to create effects greater than their individual properties. Spirit Grass mixed with Moonwater Lily petals could create a tea that enhanced mental clarity. Red Root Flowers combined with dried Azure Berries produced a paste that accelerated healing.

  But the combination that made my hands shake with excitement was buried in a footnote: "White Jade Orchid roots, when mixed with Crystallized Honey Sap and Purple Mist Flower pollen in a three-to-two-to-one ratio, have been observed to temporarily enhance spiritual sensitivity in some practitioners, though results vary wildly between individuals."

  Enhance spiritual sensitivity. That was exactly what I needed to identify the real Black Leaf herbs.

  I'd already found White Jade Orchids growing near a stream. The Crystallized Honey Sap came from certain pine trees, hardening into amber-like chunks that I'd been collecting just because they looked interesting. Purple Mist Flowers grew in shaded valleys, and I'd gathered their pollen earlier thinking it might be useful for something.

  I found a flat rock near the stream and carefully measured out the ingredients using leaves as makeshift measuring cups. Three parts orchid root, finely shredded. Two parts honey sap, crushed into powder between stones. One part purple pollen. I mixed them with stream water until they formed a paste, then diluted it further into something drinkable.

  The concoction looked absolutely disgusting. Someone had mixed dirt with grape juice and added glitter. It smelled worse, somehow combining the scents of rotting flowers and medicine cabinet.

  But this was science. Or at least, this world's version of it.

  I downed the mixture in one gulp, immediately regretting my life choices as the taste hit. Imagine licking a battery while chewing on flower stems and tree bark. My entire mouth went numb, then tingly, then weirdly warm.

  For a moment, nothing happened.

  Then the world shifted.

  It was like someone had adjusted the contrast on my vision. Things that had looked identical before now had subtle differences. The air itself seemed to shimmer in certain places, pooling and flowing like invisible rivers.

  I looked down at my collection of black-leaved plants with my improved senses. The Black Nettle now had a faint reddish tinge to its aura. The Shadow Leaf seemed to absorb light around it, creating tiny spots of dimness.

  But the true Black Leaf herbs glowed with a soft green luminescence.

  It was working.

  I spent the next hour in a state of academic ecstasy, gathering Black Leaf herbs while documenting everything I observed. Different plants had different "colors" or "textures" to their energy. Poisonous plants felt sharp to look at, as if there was an edge to them. Medicinal ones had a soothing quality. Some plants had no qi signature at all, just ordinary vegetation in a magical world.

  The sensitivity enhancement lasted about two hours before gradually fading, leaving me with a mild headache and slightly blurred vision.

  Side effects.

  In most xianxia novels, pills and potions were perfect with no drawbacks unless they were poisonous. But here, my concoction had clear negative effects that balanced out its benefits. The headache suggested increased blood pressure or neural strain. The vision problems might indicate stress on the optical nerves or the parts of the brain that processed visual information.

  This was incredible. It meant cultivation medicines followed actual rules, had measurable effects and predictable consequences. They weren't just magical plot devices, but real substances that could be studied, refined, and optimized.

  Ensure your favorite authors get the support they deserve. Read this novel on the original website.

  I could potentially develop better recipes to minimize side effects and maximize benefits. I could create standardized dosages instead of the vague measurements from the novels.

  The sun was beginning to set by the time I finished filling my pouch with properly identified Black Leaf herbs. I'd spent extra time triple-checking each plant, comparing them against both the book's illustrations and my qi-enhanced observations.

  The journey back to the sect passed in a blur as my mind continued to buzz with possibilities.

  I need to start a proper laboratory notebook. Document every herb combination. Figure out how to synthesize or concentrate the active compounds.

  This world operated on different rules than Earth, but they were still rules. Qi was just an aspect of science that hadn't been properly investigated yet, and I had a lifetime of scientific method training to apply to these mystical phenomena.

  I practically ran through the sect gates as the sun touched the horizon, my pouches bulging with carefully labeled samples.

  Elder Shen had said he'd answer three questions if I succeeded. I had approximately three hundred, but I'd have to choose the most important ones.

  How did qi actually enter the body during breathing exercises? What were the physical symptoms of an impending qi deviation? Could meditation effectiveness be measured objectively?

  Or maybe I should ask about the fundamental nature of spiritual roots. The mechanism behind breakthrough bottlenecks. The reason some techniques conflicted while others complemented each other.

  The library came into view, its windows glowing with lamplight as darkness fell. Elder Shen would be waiting, probably expecting me to return empty-handed or with the wrong herbs. The thought of his surprised expression when I presented perfectly identified Black Leaf herbs made me grin so hard my face hurt.

  This was it. My first real step into cultivation. The beginning of my journey to understand the science behind the mysticism.

  I burst through the library doors, breathless, my pouch heavy with herbal treasures.

  "Elder Shen! I've returned with your herbs! And I have so many questions!"

  Elder Shen looked up from the ancient text he'd been pretending to read for the last hour. Right on time, just as the sun dipped below the horizon. The boy had actually managed it, though his entrance left much to be desired.

  "Quiet, you fool," Elder Shen said, though without any real heat. The library was nearly empty at this hour, only a few dedicated disciples were still studying. "This is a place of learning, not a marketplace."

  Cao Chang immediately bowed, though his excitement barely dimmed. "My apologies, Elder Shen. I was simply eager to present your herbs."

  The boy produced a pouch that, surprisingly, emanated the correct medicinal qi signature of properly harvested Black Leaf herbs.

  Interesting.

  Elder Shen opened the pouch and examined the contents. The herbs were correct, and they'd been harvested with care. The boy had even removed any stems or imperfect specimens.

  "You succeeded," Elder Shen said, allowing a note of approval to enter his voice. "As promised, you may ask three questions about practical cultivation."

  The boy's eyes lit up, and Elder Shen could practically see him sorting through hundreds of potential queries.

  "First question: When we breathe during meditation to absorb qi, does the spiritual energy actually enter through our lungs like oxygen, or does the breathing simply create a rhythmic state that allows our meridians to open? In other words, is it a physical or metaphysical process?"

  Elder Shen's eyes glistened with amusement. No disciple had ever asked such a question in such a way.

  "Both," he said after a moment's consideration. "The physical act of breathing creates a rhythm that resonates with the natural flow of qi. The lungs don't absorb qi directly, but the expansion and contraction creates a pressure differential that helps draw ambient qi through the skin and meridians."

  Cao Chang was frantically taking notes, his terrible calligraphy was even worse in his excitement. "Fascinating! That explains why different breathing techniques have different effects. It's about creating different pressure patterns!"

  "Your second question?" Elder Shen prompted, finding himself curious what else this boy would ask.

  "What are the physical symptoms that precede a qi deviation?"

  Another unusual question, and one more suited for the Outer Sect Physician Sister Shu.

  "If your meditation technique involves water qi but you feel burning, that's a warning. Next comes muscle twitches in the extremities. Then an irregular heartbeat. If you experience any of these, stop immediately."

  More frantic note-taking. The boy's dedication to documentation was almost scholarly.

  "Final question," Cao Chang said, looking up with intense eyes. "Is there an objective way to measure meditation effectiveness?"

  Elder Shen found himself smiling despite himself.

  "Yes, there are three primary indicators. First, the temperature of your dantian region will drop. Second, your pupils will dilate. Third, and most reliable, your heart rate will quicken. Advanced cultivators can sense these changes in others, which is how we evaluate disciples' progress."

  "This is incredible!" Cao Chang finished his notes with a flourish, then gave a formal bow. "Thank you, Elder Shen. Your wisdom has illuminated paths I didn't even know existed."

  Elder Shen waved off the gratitude, though he was somewhat pleased. It had been years since he'd had such an engaged student. "Now it's my turn to ask you a question."

  Cao Chang straightened, tilting his head curiously.

  "What is your goal?" Elder Shen asked. He meant it as a simple question about the boy's immediate plans, but found himself adding his master's old words. "Every cultivator must pursue something innate within themselves, a truth that drives them forward. What drives you, Cao Chang?"

  The boy went still, his previous excitement replaced by deep contemplation. For a long moment, he was silent, and Elder Shen could see thoughts racing behind those dark eyes.

  "To defy the heavens," Cao Chang said slowly, then shook his head with a self-deprecating smile. "Or that's what I should say, what every cultivator claims. But honestly? I believe there are realms beyond heaven itself, beyond what we think is the peak of cultivation. And I want to see them all. I want to map the unmappable and document the impossible."

  Elder Shen felt his eyebrows rise. Such ambition was common, but the way the boy phrased it was unusual.

  "And what if your very presence in such realms causes an imbalance? What if mortals were never meant to go beyond heaven's reach? What if your curiosity disrupts the natural order itself?"

  Cao Chang met his eyes without hesitation.

  "My very presence here is proof enough that such boundaries are meant to be crossed."

  Elder Shen's mouth fell open.

  The sheer audacity of that statement. The admission that the boy considered himself to have already crossed an impossible boundary. The confidence with which he declared his intent to break the very laws of reality.

  Before Elder Shen could formulate a response, Cao Chang bowed again. "Thank you for your guidance, Elder Shen. I should return to my quarters to study these notes while they're fresh in my mind."

  The boy left, practically vibrating with energy, leaving Elder Shen alone with his thoughts.

  Madness.

  Pure, audacious madness of the kind he hadn't seen in hundreds of years.

  That arrogance the Cao clan was famous for hadn't diminished at all. If anything, it had intensified, transformed from mere belligerence into something far more dangerous: absolute conviction.

  And yet, he'd approached it with method. The boy had somehow figured out how to sense qi on his first attempt, had identified the herbs perfectly, and had asked questions that revealed genuine understanding.

  Elder Shen stroked his beard, staring at the door where Cao Chang had departed.

  This Cao Chang was as arrogant as ever, perhaps even more so than before. At least he'd learned not to raise a ruckus about it.

  Good.

  Then perhaps he finally had a profound understanding of what it meant to be a Cultivator: to pursue the impossible with such dedication that eventually, impossibility itself would yield.