The phrase "The twilight stood as strangers do" evokes a sense of separation and distance, suggesting that the twilight—often symbolizing a transition between day and night—appears to have a quality of unfamiliarity or aloofness, similar to the way strangers might interact.
In a more figurative sense, twilight can represent a time of change or uncertainty, and comparing it to strangers might imply a feeling of detachment or the unfamiliar nature of a situation. This could reflect a moment in life where things are not fully defined, much like the way strangers might not connect deeply or intimately.
Overall, this line encapsulates themes of transition, emotional distance, and the complex feelings that can arise during times of change. The imagery of twilight adds a layer of beauty and nuance to these ideas.