บท 567: Level 6 Nascent Soul, Advanced to Level 5 in body tempering, Perfected Lord Flowing Snow's Request for Help

This is a currency commonly used among Soul Formation Heavenly Lords.

Unlike the low, mid, and top-grade spiritual stones, the supreme-grade spiritual stones not only contain a large amount of pure spiritual energy but also have the effect of helping with breakthroughs.

That is, a Nascent Soul cultivator, if fortunate enough to obtain a supreme-grade spiritual stone, can use it to break through a critical bottleneck in their cultivation.

Furthermore, unlike low, mid, or top-grade spiritual stones, which turn to dust once their spiritual energy is depleted, the structure of supreme-grade spiritual stones is incredibly stable.

Even if their spiritual Qi is completely exhausted, the stone itself remains undamaged.

In fact, if placed in a mid-grade or higher mine, over hundreds of years, these depleted supreme-grade spiritual stones might even be recharged with spiritual Qi.