Q: There is a constant turmoil in the mind, which can’t rest without some activity.
Usual restlessness of the physical mind. It does not like to be unoccupied.
Q: From where has this restlessness come?
The restlessness came from activity of the physical mind, dissatisfied with the answers given to it and insisting on its own ideas. This is an old habit of your physical mind. What should be a sadhak’s attitude during the period of loneliness? He must have confidence in the Divine and remain unmoved even in that loneliness. And what is its cure? One should get down the peace and presence in that part to cure the loneliness. All difficulties cannot disappear at once, but the active resistance can cease.