In dual cultivation, only when two people practiced one cultivation method together for a long time could their true essence flow freely through both bodies at the same time, achieving unity of body and mind and allowing true dual cultivation to begin.
Most importantly, after cultivating this shared cultivation method, the two had unknowingly left each other's Divine Sense imprint in their Seas of Consciousness.
Unless special means were used, it would be extremely difficult to achieve the unity of spirit and desire with someone else through this kind of dual cultivation method that transcended carnal desire.
Naturally, Shen Miaoyin would never tell Su Shi'er any of this. She could not bring herself to say it, either.
Su Shi'er could tell that Shen Miaoyin was still hiding something, but he knew she could not harbor ill intentions. Thus, he did not continue pressing her.
He immediately nodded and said gratefully, "I see. Many thanks for trusting me, Senior Sister! And even more thanks for teaching me such an extraordinary technique as the Meridian Washing Technique."
Just from hearing Shen Miaoyin mention the effects of the Meridian Washing Technique, he knew it was extraordinary. After all, cultivation methods and secret techniques capable of healing one's foundation were exceedingly rare in the world.
Mastering such a secret technique was equivalent to gaining another means of preserving his life.
Back then, the battle at Yunhan Seven Peaks Mountain had damaged every meridian in his body, leaving him unable to move or circulate his cultivation. If Feng Fei and her grandfather had not happened to find healing medicine, who knew whether he would still be alive now.
But if he had possessed such a secret technique at the time, he could have recovered his ability to move on his own even without healing medicine.