Step 1: Understanding the theme of the poem.
"Keeping Quiet" by Pablo Neruda is a poem that reflects on the importance of silence and introspection. The poet urges people to stop and take a pause from their busy lives in order to understand themselves and the world around them.
Step 2: Identifying the core message.
The central idea of the poem is the need for stillness and quietness in a chaotic world. The poet suggests that through silence, people can develop empathy, connect with their inner selves, and find peace. The poet emphasizes that only in quiet moments can humans truly understand the impact of their actions on others and the environment.
Step 3: Conclusion.
Thus, the central idea of "Keeping Quiet" is about the significance of pausing, reflecting, and embracing silence in order to achieve a deeper connection with the world and oneself.
Final Answer: \[ \boxed{\text{The central idea of "Keeping Quiet" is the importance of silence and introspection. The poet urges us to pause and reflect in order to understand ourselves and the world around us.}} \]