Is the world seen by humans the same as the world seen by a dog? Who sees it more realistically? Does the material world have its essence? What is its essence? Can humans see its essence? Human understanding of the material world is limited by their senses, but humans also have the ability to reason and imagine, so they can surpass the limitations of their senses to some extent, such as the discovery and utilization of electromagnetic waves. But do they still have a limit?
乌云盖雪
看君终日常安卧，何事纷纷去又回？