《庄子·杂篇·庚桑楚》
胸襟坦然、心境安泰镇定的人，就会有自然的灵光。发出自然灵光的人，看人观物，清楚明白。
发乎天光者，人见其人，物见其物。
A person with a broad mind and a peaceful and stable state of mind will have a natural spiritual light. A person who radiates natural light, sees people and observes things, clearly and clearly.