Loot
Mira's eyes sparkled as she finally found what she was looking for.
The room in front of her was filled with an abundance of energy-rich items. Most of them were corpses of various creatures, but among those corpses, Mira found what allowed for the rapid growth of the Nightbringer ants.
'Spirit Worms!' Mira shouted inwardly.
According to her knowledge, Spirit Worms are a species that have little to no combat power. While they can still cultivate, they don't actually gain much strength from having a higher cultivation.
However, Spirit Worms play a large role in the cultivation world, especially regarding the creatures that live underground. Their job is to improve the quality of the ground. They eat the stone, dirt, clay, etc., underground and excrete a version of it with fewer impurities and more Qi infused with it.