祖: The founder of a career or school of thought, the ancestral lineage, or the motherland. In a name, it often conveys the meaning of a bright future, bringing honor to one's ancestors, and is beneficial for career advancement and academic pursuits.

光: Light, radiance. When used in personal names, it often signifies an open and honest heart, a sunny and cheerful disposition, as well as a sense of being filled with hope.