Contextual explanation: Physical or spatial stabiliser of self and belonging. 
Identity anchor is best understood as a tangible or spatial element within a home that grounds and reinforces an individual's sense of self, belonging, and personal identity. It serves as a reference point that helps maintain psychological stability and continuity, especially during times of change or uncertainty.

Themes: Home, belonging, and self-continuity. 
The concept of identity anchor is closely tied to the theme of home as a site of personal meaning and belonging. It highlights how physical spaces or objects can support self-continuity, providing comfort and reassurance by connecting individuals to their personal history and values.

Nuance: Material embodiment of identity. 
What distinguishes identity anchor within its category is its focus on the material or spatial aspects that embody and stabilise identity. Unlike abstract notions of self, an identity anchor is a concrete feature—such as a cherished object, a specific room, or a familiar arrangement—that acts as a stabilising force for one's sense of who they are.