Step 1: The Theme of the Poem.
The central idea of the poem "Keeping Quiet" by Pablo Neruda is the importance of peace and stillness. The poet urges people to take a moment of quiet, to stop their actions and violence, and reflect on their lives. He believes that in silence, one can find true peace and clarity.
Step 2: Reflection and Contemplation.
Neruda suggests that when people remain still, they can reflect on the futility of their actions and the violence in the world. The idea of stillness is connected to a deep sense of reflection, allowing for an understanding of human actions and the world around us.
Step 3: Universal Peace.
The poet emphasizes the need for collective silence, not just for individual peace, but also as a means to build understanding and peace across the world. Keeping quiet is also a form of unity and a step towards global peace.
Final Answer: \[ \boxed{\text{The central idea of "Keeping Quiet" is the importance of silence and stillness in fostering peace, reflection, and universal understanding. It calls for pausing from violence to allow inner peace and collective unity.}} \]