What is what illuminated mean?

When something is illuminated, it means that it has been lit up or made bright with the help of artificial light or natural light. Illumination can refer to physical objects that emit light, such as lamps or light fixtures, or to things that reflect light, such as surfaces, objects, or pictures. Illumination can also refer to the use of light to highlight or draw attention to something, such as highlighting text in a book or spotlighting a piece of artwork in a museum. Additionally, illumination can refer to the enlightenment or understanding that comes from knowledge or education.