Question: Sometimes during concentration at twilight, for instance, I hear a vibration which is like a murmur or a hum. Is that vibration from my own subtle body or is it the vibration of the earth, of the atmosphere?

Sri Chinmoy: The vibration comes from your subtle body. It does not come from outside, particularly in your case.

From:Sri Chinmoy,Meditation: God speaks and I listen, part 2, Sri Chinmoy Lighthouse, 1974
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