What is the significance (impotance) of the lark and the nightingale?

The lark is often seen as a symbol of day, light, and positivity, while the nightingale is associated with night, darkness, and melancholy. Together, they represent the duality of life and emotions, highlighting the contrast between joy and sorrow, light and dark. Their symbolic significance is often used in literature and art to explore themes of beauty, love, and the passage of time.