So the jade slip actually recorded a method for tempering divine sense—the Spirit Guiding Technique!
Divine sense was a special ability unique to mid-level Qi Cultivation stage, something basically every Qi Practitioner could use. Yet as one of the most fundamental skills, it was like the martial path's acupoint-striking: each person had their own techniques and applications. As the saying went, "Cats had cat trails, rats had rat roads." Zhang Xiaohua's little sword had come from this very principle. It was clear that the unknown cultivator from ten thousand years ago had placed exceedingly high demands on using divine sense to control objects, and their cultivation of divine sense must have had something unique about it.
The Azure Blood Alchemy Heart technique Zhang Xiaohua had obtained from Fire Dragon True Person's jade slip on the deserted island was an extreme path that took the sword down a side road. It could indeed fundamentally improve divine sense and forcibly strengthen it by several degrees, but in terms of cultivation's essence, it was still inferior to the Spirit Guiding Technique's systematic and comprehensive tempering. Zhang Xiaohua's current control over divine sense was still exceedingly primitive. Once his cultivation deepened and he needed to manipulate divine sense with meticulous precision, he would discover that much of it would become stiff and sluggish.
Fortunately, "When Heaven was about to entrust Xiaohua with a great task, it would surely grant him strange encounters." Having obtained the Spirit Guiding Technique, he could, first, systematically temper and strengthen his divine sense, and second, check for gaps and fill in the shortcomings of the Azure Blood Alchemy Heart one by one.
After laughing, Zhang Xiaohua immersed his divine sense deeply within and began examining it carefully.
The Spirit Guiding Technique was divided into nine layers, each with specific