In Lewis Carroll's "Through the Looking Glass," the poem reflects a whimsical, dream-like perspective on life. It suggests that people exist in a constant state of dreaming, passing their days in a carefree and imaginative manner, much like wandering in a fantastical Wonderland. The imagery highlights the fleeting and transient nature of life, comparing it to a dream that drifts by like a stream.

"In a Wonderland they lie, Dreaming as the days go by, Dreaming as the summers die," captures the idea that our lives are ephemeral and enchanted, filled with fleeting moments of joy and illusion. The poem prompts readers to contemplate the nature of reality and the idea that life, in its essence, might be an ongoing, beautiful dream.