Human senses, particularly sight and hearing, serve as powerful channels that draw pleasure and joy into both the physical body and the inner world. This dynamic ranges from simple physical enjoyment to profound intellectual and spiritual clarity. On a basic level, taking in beautiful sights, such as lush gardens or flowing rivers, dispels sadness and brings direct joy to the heart [רש״י]. This idea extends to human interaction; showing a cheerful face to another person, or developing the psychological habit of seeing the good in the world, generates deep happiness [ביאור שטיינזלץ]. Some suggest that simply possessing a healthy, clear sense of sight is a source of joy, while another perspective flips this dynamic, noting that a naturally happy heart actually brings a sense of light and clarity to a person's eyes [עמנואל הרומי].
Similarly, taking in good news—especially messages arriving from a distant land—brings great joy [ביאור שטיינזלץ, עמנואל הרומי]. This joy has a tangible, physical impact on the body. It promotes health, adding strength to the bones [מצודת ציון] and filling them with marrow so they remain fresh and robust, as happiness naturally improves a person's physical well-being [רלב״ג, עמנואל הרומי].
A deeper philosophical distinction emerges between these two senses. Sight is understood as a more internal, spiritual experience that directly impacts the heart, which is the center of the soul. Hearing, by contrast, receives information from the outside and primarily affects the physical body. Because of this, the inner joy generated by sight is considered deeper and more elevated than the physical health brought about by hearing [מלבי״ם]. Still, both of these sensory experiences—enjoying beautiful sights and hearing good news—are ultimately temporary and physical when compared to the lasting, eternal value of accepting moral instruction [אלשיך, אבן עזרא].
Beyond the physical senses, this dynamic applies to the realm of the mind and spiritual study. Here, light represents intellectual enlightenment and the acquisition of wisdom [רלב״ג]. The greatest joy the heart can experience is the resolution of lingering doubts and the achievement of total clarity [מצודת דוד]. In the context of religious study, this joyful light is experienced when a person is asked a difficult question and knows exactly how to provide the correct answer [רש״י], or when the wisdom of the Torah simply illuminates the heart of a scholar [חומת אנך]. Correspondingly, the good news that strengthens the bones represents hearing new insights in Torah study [מצודת דוד]. It also describes the experience of an ordinary person who comes to the study hall just to listen to words of wisdom, an act that infuses their very bones with life and freshness, ensuring they never dry out [חומת אנך].