For the next three days, Li Yao spent all his time doing restorative training. He was working hard to restore his body back to its peak state in the shortest span of time.
To sum it up, it was just eating and sleeping.
Eating the high-energy compressed food that was specifically made for the military.
It was military specialized because it was for the cultivators preparing to hunt in the Demon Beast Wasteland. Just a fingernail-sized piece was enough to fuel a low-level cultivator with enough energy to fight for an entire day. Every hour, Li Yao would force himself to eat a jar full of this highly energy-compressed food before he would use <The Great Art of Swallowing Whale> to assimilate it, subsequently converting the food into the most basic energy used to repair his over exhausted body.