This line from Al-Mutanabbi's poetry uses a powerful simile to compare the movement of an army to that of an eagle shaking its wings. The imagery evokes a sense of strength, agility, and majesty, suggesting that the army is as formidable and awe-inspiring as a mighty eagle. The poem is a tribute to Sayf al-Dawla, emphasizing his leadership and the might of his forces. Al-Mutanabbi's choice of an eagle, a symbol of power and freedom, enhances the grandeur and nobility of the army, reflecting the poet's admiration and the cultural significance of such imagery in Arabic literature.