Stress without rest leads to burnout; stress with rest leads to growth. For example, when leaders continually push their employees to perform at their maximum without giving them time to recover, workers will, eventually, underperform and burn out.
If you regularly give them time to recoup, they achieve harmony and come back stronger.
People build resilience by adopting the daily foundational habits of pause, ask, choose. Your approach to stress determines your outcome, and when you build daily resilience habits, you become stronger.