The original sentiment of the holy relic hungered to take over the spiritual accumulation surrounding it.
Now that Ves wiped out the latter's spiritual imprints, it became free for the taking, but only if the original sentiment possessed the fuel to sustain the conquest!
After donning the mask of Prophet Ylvaine, Ves continued to generate new thoughts and emotions that centered around the Ylvainan Faith. Although a genuine Ylvainan worshipper would spot the many flaws and shortcomings of his understanding of faith, the dormant original sentiment wasn't as discerning!
A moderate resemblance was enough for the original sentiment to strengthen and expand its spiritual imprint!
While Ves was happy that he succeeded with this step, he quickly regretted it as the drain exceeded his expectations!