The Circle of Security is a visual model that illustrates the emotional needs of children and the role of caregivers in meeting those needs. It emphasizes the importance of providing a safe base for children to explore their environment while also being available for comfort and support when they feel threatened or anxious. This model highlights two main areas: the outer circle represents the child's exploration and independence, while the inner circle signifies the need for security and connection. By understanding this framework, caregivers can better respond to children's needs, fostering healthy emotional development and secure attachments.