Chitta Vritti Nirodha is brought about in sleep, swoon, or by starvation. As soon as the cause is withdrawn there is a recrudescence of thoughts. In the state of stupor there is peace and no misery. But misery recurs when the stupor is removed. It is by finding the cause of misery.
Misery is due to the perception of objects.
They have no substantive being. Investigate the matter and ascertain the truth of the statement. The result will be the conclusion that the objective world is in the subjective consciousness. The Self is thus the only reality which permeates and also envelopes the world. Since there is no duality, no thoughts will arise to disturb your peace.