Chu Mu picked up a single grain of Spirit Rice. It was Spring Breeze Rice, a Tier One Lower Grade variety that cost one Spirit Stone per pound. It was the most common type of Spirit Rice in the Jade Emperor Valley Marketplace.
Spirit Rice was rich in Spiritual Qi, and its benefits to Cultivators were self-evident.
In fact, in Chu Mu's opinion, Spirit Rice—or more broadly, Spiritual Food—was one of the most indispensable resources for a Cultivator.
The reason it was indispensable was because mundane grains, meats, and vegetables could no longer satisfy the needs of a Cultivator's body. One could only try to make up for the lack of quality with sheer quantity.
But this led to a rather awkward problem.
Mundane food was full of impurities, yet a Cultivator's body had extremely high requirements for nutrients.
Therefore, when a Cultivator ate mundane food to fill their stomach, they had to eat a great deal but absorbed very little. And then...
The problem was quite awkward...
