Sri Aurobindo
Letters of Sri Aurobindo
Volume II - Part 1
Fragment ID: 11227
It is not necessary [in a calm mind] that there should be no thought. When there is no thought, it is silence. But the mind is said to be calm when thoughts, feelings, etc. may pass through it, but it is not disturbed. It feels that the thoughts are not its own; it observes them perhaps; but it is not perturbed by anything.