The quote describes a moment during sunset when the characters notice their eyes blinking in the fading light. It emphasizes how light is an ongoing part of life, demonstrating the natural transition from day to night. The imagery captures a peaceful, reflective mood as they observe this daily phenomenon.
This passage suggests that light, symbolizing hope or clarity, is persistent and recurring in life. The mention of the sunset serves as a reminder of life's cyclical nature, where each ending is followed by a new beginning, much like the continuous cycle of day and night.