Sri Aurobindo
Letters on Yoga
5. Planes and Parts of the Being
Fragment ID: 449
From what you describe it seems that you have got into contact with the mechanical mind whose nature is to go on turning round in a circle on the thoughts that come into it. This sometimes happens when the thinking mind is quiet. This is part of the physical mind and you should not be disturbed or alarmed by its rising up, but see what it is and quiet it down or get control of its movements.