The quote by Longfellow emphasizes the depth and complexity of youthful thoughts, suggesting that young people often engage in profound reflection about life and their dreams. It highlights how the aspirations and imaginations of youth can seem to stretch far into the future, filled with hope and possibility.

In L.M. Montgomery's "The Anne Stories," this theme resonates with the character of Anne Shirley, whose vivid imagination and longing for adventure embody the essence of youthful dreaming. The stories capture the journey of growing up, illustrating how Anne's thoughts and experiences shape her identity amidst the challenges and joys of adolescence.