Dear instructors,

What actually happens when we burn ourselves out through practice?

Also, how do we avoid burning ourselves out while never forgetting our true Self? Breaks always seem to help me but I often find myself in the habit of distraction during these moments of "rest." It seems we must always be constantly vigilant, yet how do we maintain the willpower and energy to do this all day long, from moment to moment, without becoming disillusioned, dull, or mechanical?

Thank you.