The soul is like a bowl of water, and our impressions are like the ray of light falling upon the water. When the water is troubled, it appears that the light itself is moved too, but it isn't. So, when a person loses their composure it isn't their skills and virtues that are troubled, but the spirit in which they exist, and when that spirit calms down so do those things. -EPICTETUS, DISCOURSES, 3.3.20β22
Epictetus compares the soul to a bowl of water, suggesting that our perceptions and reactions are influenced by external disturbances, like light refracting in turbulent water. When we face challenges or lose our tranquility, it may seem as if our core virtues and skills are shaken. However, it is not their essence that is changing; rather, it is the state of our spirit that is agitated.
Once we manage to restore our inner peace, the underlying qualities and strengths will also return to their true state. This insight emphasizes the importance of maintaining composure and calmness, as they are the key to effectively accessing and expressing our true abilities and virtues.