By the time Zhang Tie left the ancestral hall at Huaiyuan Hall on Tiger-Embracing Mountain and returned home last night, it was already late. He had some plans in mind, but seeing that his mother and father were both asleep when he got back, he said nothing. He went straight to the inner residence to enjoy boundless amorous bliss.
That night, Linda, Beverly, and Fiona were all very diligent. They tussled with Zhang Tie for most of the night before the three women finally fell asleep, exhausted yet satisfied.
Sleep was recharging, and also the most natural way for a person to recover their energy and vitality. As a Knight, even sleep could be vastly different from that of ordinary people.
Ordinary people slept in shallow sleep. During sleep, certain regions of the brain and cortical tissues remained in a semi-active state of excitation. Like an idling engine, that semi-active state itself consumed the body's energy and vitality. That was why ordinary people needed longer periods of sleep. Under normal circumstances, an ordinary person needed seven to eight hours of sleep to recover a day's energy. What the Hua Clan called "closing one's eyes to nourish the spirit" was in fact a way of reducing the excitation of certain regions of the brain and cortical tissues by shutting one's eyes, allowing them to consume less energy and vitality in order to nourish the spirit.
A Knight's sleep was different from that of ordinary people. Almost every Knight naturally mastered the technique of deep sleep upon advancing to Knight. Such deep sleep was like rapidly recharging the body. It allowed a Knight to attain better sleep quality and recover their energy in a very short time—merely three or four hours, or even only around half an hour under special circumstances.
Zhang