Why was maria the invisible maid?

Maria, often referred to as "the invisible maid," symbolizes the overlooked and underappreciated labor of domestic workers, particularly women of color. Her story highlights the struggles and sacrifices of those who perform essential tasks in households yet remain unrecognized and marginalized in society. This invisibility reflects broader social issues related to class, race, and gender dynamics, emphasizing the need for acknowledgment and respect for all forms of labor.