Final answer:
The indescribable change Fiona has undergone refers to a profound inner transformation or a significant shift in her situation, much like characters in provided excerpts who experience awakening, identity shifts, and new life purposes.
Step-by-step explanation:
The indescribable change that Fiona has undergone can be inferred from the various provided texts as a significant transformation in her character and circumstances. As described, this change is less about physical alteration and more a profound shift in inner self or situation. Each excerpt underscores a shift from innocence to experience, from naïveté to a deeper understanding, or from loss to new purpose and identity.
In one instance, a character named Jane Withersteen steps into a protective maternal role, her inner strength awakening with a force compared to a lion-ess. This is a pivotal change in her sense of purpose and identity. Similarly, for Trina, the moment she is caught in the arms of McTeague triggers a transformation, awakening a powerful and overwhelming part of her being. And for characters like Sylvia, the change is in the sudden revelation of genuinely feeling alive upon moving to the farm, and for another, it's a tortuous shift in behavior due to mental distress.
Each character experiences a profound metamorphosis. They transition into states that redefine their essences, bringing new realities that they must navigate. These changes are sometimes welcomed, sometimes feared, and often have a significant impact on their futures and relationships.