After observing for a while, Lin Ke finally understood.
What Lin Can needed was indeed spirit stones.
But if he had to fill this place with spirit stones, as Lin Can had said, he could never manage it unless he seized an entire spirit stone vein.
Of course, it was not as though he had no other options.
If spirit stones could help Lin Can cultivate, he did not necessarily have to use low-grade spirit stones.
Mid-grade spirit stones, or even high-grade spirit stones, would work too.
After all, low-grade spirit stones contained little spirit power.
For low-grade and mid-grade spirit stones of the same volume, the former contained less than one percent of the spirit power in the latter.
The exchange rate for low-grade spirit stones to mid-grade spirit stones had already risen above 110 to one.
So if Lin Can needed to devour spirit stones, using higher-quality ones would naturally be more economical.
"Since it works, go ahead and absorb these for now."
As Lin Ke spoke, he took nearly a million low-grade spirit stones from his Storage Bag and placed them inside Lin Can's cave.
"Absorb these first and see whether they're enough. If not, I'll send you more."
He estimated that the spirit stones Lin Can needed for her breakthrough probably would not reach the hundred-million range.
After all, converted into spirit power, that many spirit stones would be enough for some Golden Core Late Stage cultivators to break through to Nascent Soul.
In practice, ten million or so low-grade spirit stones should be enough for Lin Can to break through.
The spirit stones he was giving Lin Can now were merely what he carried with him.
He still had plenty of spirit stones in the Wilderness Tower.
Once he left, Lin Ke would contact Wu