Rhetorical Strategy: Identity in Metaphor

Read the following excerpt from a renowned author’s essay on the complexities of identity:

“Identity is not a static label; rather, it is a fluid and evolving concept that is shaped by our experiences, interactions, and the societal frameworks around us. We must recognize that within each of us resides a multitude of identities, often existing in tension with one another. To understand ourselves, we must embark on a journey, one that requires introspection and a willingness to confront our own privileges and biases.”

In this context, which rhetorical strategy does the author primarily use to explore the theme of identity?