C1385 The Disappeared Old Friend

There was a portion of the heavenly lightning which attacked not the physical body nor the divine soul, but the dao heart. Yang Fan's method was to introduce the heavenly thunder into Situ Qiu's body, and use it as a sharpening stone in order to quickly improve his dao heart.

If Situ Qiu was able to endure it, then naturally, the heavenly lightning would become a sharpening stone