No matter how silly Mo Wuji was, he would not just stop there. After he finished this, he started using the lightning spirit stone to flip the soil surrounding the seed. The truth was that Mo Wuji was circulating his elemental energy to stimulate the lightning spirit stones.
Even if Mo Wuji did not know the purpose of doing so, he had no other ways to nurture or grow a spiritual herb.
After about two hours, Mo Wuji stopped and took a look at the lightning spirit stones in his hand. Realising that the spirit stone was reduced to less than half its original size and with most of its spiritual energy gone, Mo Wuji looked at the soil on the medicine bed with doubt. The spiritual energy of the soil on the medicine bed did not increase by much, where did all the spiritual energy go?
Very soon, Mo Wuji was able to get a good grasp on the situation. Could it be that the spiritual energy from the spirit stone was absorbed by the seed?