Soru

Read the following passage carefully:

"The music in the drawing-room continued to swell, a waltz that Helena had heard a thousand times before, yet now it seemed to reach her from across an immense gulf. Only a moment earlier, she had been laughing at Mr. Henderson’s dry wit, her fan moving in rhythm with the chatter of the room. But the mention of the estate at Oakhaven—a mere pronoun dropped carelessly by a passing guest—had arrested her mid-sentence. Instantly, the gilded wall panels and the scent of hothouse gardenias faded. She was ten years old again, standing on the frost-hardened gravel of the carriage drive at Oakhaven, watching the black trunks being strapped to the roof of her father's carriage while the wind whipped the dead oak leaves across her boots. That day had taken hours to unfold, every sob of her mother’s a heavy weight in the freezing air, yet in the memory it occupied only the space of a single indrawn breath. Now, the sharp clink of a teacup brought her back. Mr. Henderson was still looking at her, his smile slightly frozen, waiting for her response. The waltz had not even reached its second movement. Helena smiled, raised her fan, and spoke, though her voice felt like a borrowed instrument."

In the passage, the contrast between the detailed depiction of Helena’s childhood memory and the brief duration of the present-moment interruption serves primarily to do which of the following?