Question: Why should someone meditating alone in his room be bothered by the agitation of the world outside in the street, especially if he can't hear it from his room?
Sri Chinmoy: Once the day dawns, Mother Earth becomes divinely energetic or undivinely restless. Especially in the West, because of its present dynamic nature, there is some feeling of irritation in the cosmos, or in the outer nature. These restless qualities of the world do not have to enter into you, but usually they do. When people move around, immediately their vibration enters into you, no matter where you are. The air, the light, has already been corrupted by human toil, human anxieties. The world is standing in front of you like a roaring lion. How can you enter into your highest meditation in front of a roaring lion? But, if you can meditate before nature starts functioning, when the cosmos is still and the entire universe is taking rest, then you will be able to get a more powerful concentration and a deeper meditation.
Sri Chinmoy, Meditation: God speaks and I listen, part 1, Vishma Press, 1974