Yang Qing's solitary figure merged effortlessly with the peaceful stillness and silence of his office. His energy and essence seamlessly blended into the environment to such an extent that anyone below the core formation realm would be unable to detect his presence if they entered the room.
He accomplished this impressive feat thanks to one of the runes associated with his Yin Yang Jade Nature Bones physique. This specific rune granted him abilities similar to the turtle breathing technique, although Yang Qing would argue that the effects of his rune were even better, at least for him personally.
The turtle breathing technique allowed one to merge their essence with their surroundings completely, becoming inseparable from the environment. Mastering this technique meant becoming one with everything around you—not just its physical elements but also its past, present, and future. It was akin to wearing the environment as a second skin.