```
About the idea of supplying Spirit Plants with growth necessities without relying on a Spirit Vein, Song He had indeed struggled with it before.
In his view, even if the sect continued to expand, and even plunder resources from foreign territories, relying solely on the spirit Qi within the earth would pose some problems.
It might be a bit like worrying unnecessarily, but he had read a fair number of Doomsday Era novels in his previous life, where the earth's spirit Qi was always depleted.
So he wondered if the light of the sun and moon could be used as spirit Qi?
Solar power, lunar power, starlight, and so on.
They are environmentally friendly and sanitary, and they will never deplete—unless the whole world becomes shrouded.
"Just the right time to try," he said softly, and then glanced to the side, speaking out loud, "Song He here, seeking to visit my junior brother and sister. I entered your residence without permission, please forgive me."
