With the succession of Vaan's Heavenly Massage, many disciples began to take notice of the increasingly loosened bond strength between seawater and pure mana. It was especially observable near the tent as the usually invisible pure mana became visible.
Further away, the pure mana was not so visible, but its movements could still be sensed.
If a person paid attention to the overall region, they would notice the surrounding pure mana converging toward Mermaid's Grotto, or, to be more precisely, Vaan's tent.
With the passage of time, the concentration of pure mana in the area continued to rise. As a result, the effects were no different from a mana gathering formation, transforming the area into a minor blessed land of cultivation.
Over time, the effects would only continue to improve.