...
However, four thousand Qian Gold sounds like a lot, but that is the production of a full ten years.
Moreover, the consumption is extraordinarily large.
Just the Spirit Gathering Array alone needs to have its spirit stones replaced every five years, requiring five spirit stones each time, which averages out to the usage of one spirit stone per year.
Additionally, the fertility of the spirit field is a huge problem. A spirit field without fertility is like a human body lacking various vitamins, which can easily lead to stunted or even dead spiritual medicine.
The best source of fertility is the fermentation of spiritually linked things such as straw left from harvesting spirit rice, remaining purple leaves from purple-leafed Heshou, and remnants of spirit fish and spiritual flesh.
Of course, the main source of fertility is still the manure from domesticated spirit beasts.
