The quote "All days are nights to see till I see thee, And nights bright days when dreams do show thee me" from Shakespeare's sonnets conveys the deep yearning and longing of a lover. The speaker expresses a profound sense of darkness and emptiness in their life, with each day feeling insufferable until they reunite with their beloved. This emphasizes the emotional impact that love has on one's perception of time and reality.

Furthermore, the contrast between day and night highlights the transformative power of dreams and the relationship itself. While days without the beloved are akin to night, the nights filled with dreams become luminous and hopeful when thoughts of the beloved arise. This illustrates how love can illuminate one's existence, making even the darkest moments bearable through the joy of remembrance and imagination.