"Cracks of dawn", the first moments of dawn, when the night begins to break and the first light appears on the horizon. It captures the idea of the subtle, initial light of sunrise breaking through the darkness, often symbolizing new beginnings or hope. The "cracks" suggest the slow but inevitable transition from night to day, giving the feeling of light pushing through the last remnants of night. It's a vivid metaphor for the dawn’s early, fragile light.