During the negotiations between the two sides, the Second Ancestor also learned the approximate function of this secret art. The backlash during its use was quite severe and would affect the caster's own soul.
With one misstep, the soul could sink into oblivion and lose itself, never to awaken again. Connecting this with the items the Veiling Sun Clan had demanded, he came to understand a few things.
Besides spirit stones, the other party had demanded four extremely rare heavenly treasures. Those treasures were, in fact, meant to nourish and protect the soul.
Presumably, they wanted to refine a special pill—either to nourish the soul afterward or to safeguard it during the casting process.
Taken together, these conditions fit the requirements of the Veiling Sun Clan's secret art extremely well.
The Second Ancestor also knew that for this technique to succeed, it required some personal item belonging to the target cultivator who might have died, such as clothes they often wore or items they regularly carried.
Only then could it be used as a medium to sense that faint connection within the unseen and attempt to find the other party.
However, the chance of success would not exceed twenty percent, and it mainly depended on how intimately that item had been connected to its owner during their lifetime.
Things like spare magical treasures that the other party had personally refined were the most likely mediums through which to locate their soul.
It was precisely because of the Veiling Sun Clan's explanation that the Second Ancestor began to dismiss his concerns. He understood certain mysteries of the soul under the laws of the Heavenly Dao.
Later, during his discussions with them, the Second Ancestor stated that there was no great issue with paying the spirit stones to the Veiling Sun Clan,