Identifying Tone in Personal Reflections

Read the following excerpt from a personal essay reflecting on the author's childhood experiences:

'The days of my youth were like the blink of an eye, fleeting and ethereal, yet laden with the vivid blooms of memory. Each Saturday afternoon, my sister and I would race down the hill behind our house, laughter echoing in the sunlit air, our hearts light with the ignorance of impending adulthood. It was a time suspended, where time itself seemed reluctant to intrude, allowing us to dwell in the sanctity of innocence.'

Which of the following best describes the tone of the excerpt?