Mark Messier continues:
Think about it. How many times have you not been able to fall asleep or woken up in the middle of the night because your mind was racing with worries about personal or professional issues? You’re exhausted, but you can’t sleep. Your mind has taken control of what the body can do.
Ibid., your honor.

The Captain says it best. We have to be able to control our minds in order to sleep. But he goes even further when espousing the virtue of controlling the mind.
Why should we expect that the effect would be any less profound when we’re fully awake and trying to make our bodies do something athletic?
Control your mind, control your sleep. Control your mind, control your actions when awake. To be the best we can be means being rested, but also fully developed in managing this incredible tool that seems uncontrollable.
This is not a new concept. Anyone who practices meditation knows that a principal consideration and benefit is the ability to control the mind — not just during the practice, but during the course of a day, as needed, maybe even on command.
We’ve already compared the degree of difficulty of napping to night time sleep. Let’s now compare the degree of difficulty of napping to meditation. This will crystallize why napping is so challenging — but why it is so important to embrace it, work through that challenge, and receive the lifetime of positive results that only an experienced napper can achieve.