Central Idea of the Poem "Wind":
The central idea of the poem "Wind" by Subramania Bharati is the power and impact of the wind on nature and human emotions. The poem personifies the wind as a powerful force that can bring about change and transformation in the world.

Key Points:
- The wind is portrayed as a dynamic and unpredictable force that can both create and destroy.
- The speaker describes the wind as a messenger of change, carrying both joy and sorrow.
- The wind is depicted as a symbol of freedom and liberation, capable of breaking barriers and bringing new beginnings.
- The poem explores the various ways in which the wind influences and shapes the world around us, from stirring the leaves on trees to inspiring human emotions.
Overall, the poem "Wind" celebrates the elemental power of nature and highlights the profound impact that the wind can have on our lives. It emphasizes the beauty and unpredictability of the natural world, urging readers to appreciate the wonders of the wind and its ability to evoke a range of emotions.