A Spirit Vein could be shattered, but if the demon corpses within it could not be extracted, the problem of the shrinking Spirit Vein would remain unresolved.
This was evident just by looking at the God of War Temple.
Back then, even Xue Gong had severed the Spirit Vein. Although the God of War Temple possessed the main vein, its spiritual energy was still draining away—just slightly slower than everywhere else.
Chapter 213