A few days before the exam, Lin Feng took a careful stroll around the villa and rearranged several formations, suppressing the excessively concentrated spiritual energy to a more reasonable level. Although the energy remained abundant, it was no longer as overwhelming as before. Lin Feng didn't waste the excess spiritual energy, redirecting it underground instead. Nourishing the land with spiritual energy would yield benefits to its inhabitants, and it would also make things easier for him later if he decided to construct a Hidden World here.
The Old Monster and others naturally noticed this change and showed expressions of delight. While concentrated spiritual energy was beneficial, excessive amounts could turn into poison. Lin Feng's ability to regulate the spiritual energy to an optimal level meant they could cultivate without concerns and simultaneously keep this area hidden from other cultivators. This was an accomplishment that only Lin Feng could achieve.