"This talisman is pretty good..."
He Pingsheng set down the jade slip and asked, "Does crafting a Soul-Tracking Talisman require anything special?"
He looked at Qiao Huizhu.
Qiao Huizhu nestled against his left shoulder, lazily opened her eyes, then shook her head. "Special materials? I suppose so... just the usual talisman paper and talisman ink, but you have to add some sixth-grade soul crystals..."
"Soul crystals?" He Pingsheng nodded. "Those aren't easy to come by!"
Soul crystals were special materials, exceedingly rare.
They were crystals formed by condensing Divine Sense.
Moreover, not just anyone could condense these soul crystals.
Once Divine Sense crystallized, it meant the collapse of the entire Sea of Consciousness.
Thus, only those who had undergone Wisdom Severance and had no hope of breaking through would condense their Divine Sense into soul crystals in their final days to pass down to their descendants.
That was where soul crystals came from.
Under normal circumstances, killing an enemy would not yield a soul crystal.
These things could only be condensed voluntarily.
And legend had it that the condensation process caused immense pain, so even among those who had undergone Wisdom Severance, only a tiny minority chose to condense divine crystals at the end of their lives.
The lowest grade of divine crystal was fifth grade.
In other words, they could be condensed upon reaching the Spirit Transformation Stage, after Divine Sense transformed from formless to tangible.
Naturally, those at the subsequent Void Refinement, Body Integration, and other realms could do so as well.
Sixth-grade soul crystals were things voluntarily condensed by Void Refinement Realm cultivators before their deaths.
Not only could these things be used to craft talismans, they were also excellent supplements for spiritual sense. They could be consumed directly to repair one's Divine Sense or used as