Idioms on light delve into the multifaceted nature of light, its importance, and its role in shaping our world and experiences. They explore the contrast between light and dark, the concept of illumination, and the impact of brightness and luminance on visibility and perception. Further, they highlight the figurative and metaphorical uses of light to convey hope, guidance, revelation, enlightenment, and transformation. These idioms provide a rich vocabulary for describing the complexities of light, its impact on our physical and emotional states, and its profound significance in human culture.