How does Regina stride the narrow world like colossus?

In the poem "Regina," the phrase "stride the narrow world like colossus" suggests that Regina commands her surroundings with immense presence and strength, much like the Colossus of Rhodes, a giant statue symbolizing power and dominance. This imagery emphasizes her ability to navigate life's challenges with confidence and authority, making her an imposing figure in a constrained environment. Her confidence and larger-than-life persona allow her to transcend limitations, embodying resilience and formidable spirit.