Reasons for the Child's Happiness in the Poem:

1. Nature's Beauty:
The child in the poem is happy because he is surrounded by the beauty of nature. The poem describes the clear blue sky, the green grass, and the colorful flowers that make the child feel joyful and content.

2. Playfulness and Innocence:
The child's happiness also stems from his playful and innocent nature. He is carefree and unburdened by the worries of the world, allowing him to fully embrace the present moment and find joy in the simple things.

3. Connection with Animals:
The child's interaction with the animals in the poem, such as the birds and the lambs, brings him a sense of joy and companionship. These innocent creatures mirror his own innocence and add to his overall happiness.

4. Freedom and Exploration:
The child's freedom to explore the world around him contributes to his happiness. He is able to run and play, discovering new sights and sounds that fill him with wonder and excitement.

5. Imagination and Creativity:
The child's imagination and creativity play a significant role in his happiness. He is able to see the world through a lens of wonder and possibility, sparking his curiosity and bringing him endless delight.
In conclusion, the child in the poem is happy due to his connection with nature, playfulness, innocence, freedom, imagination, and the joy of simple pleasures. These elements come together to create a sense of happiness and contentment that radiates throughout the poem.

Because he greats everyone