It means that the world has brought us pain and suffering, and we have been hurt in some things. However, our attitude should not be negative, but positive. We still love the world, and the world is still beautiful. We should take these difficulties as opportunities to exercise and gain experience and respond with songs.
Extended data
The theme of "bird"
Bird shows the deep spiritual pursuit-the ultimate principle of universal love and harmony or God, depicts the spiritual connection and organic integration of all things in nature, shows the close interaction between man and nature, love and God, and praises the freedom, equality and fraternity of life-thus producing a rich and meaningful philosophy of life.
Here, the boundaries between God, nature, man and love are blurred. The poet pursues the unity of man and God, the relationship between love and God, and the unity between God and nature, and longs for a "completely unified image" with God, that is, to achieve the unity of limited life and infinite life, that is, to reach the highest ideal state of man.
Therefore, the poem reveals that people must perfect their personality, get rid of hypocrisy in thought and drive away all ugliness in their hearts, and only in love and service for love can they combine with God. The poet expressed his dedication to life and the pursuit of meaning in his poems, which made the poems full of vitality.
Because the poet's philosophy of life is not perfect, he can't do anything about the ultimate unity of limited life and infinite life, so he has to rely on moral self-improvement and "universal love theory" to realize unity, life perfection and social ideal.
References:
Baidu Encyclopedia _ Birds Collection (Literary Poetry Collection)