In fact, if man knows what peace is, and what mind is, he cannot write a book entitled PEACE OF MIND, because mind is the cause of all unpeace, all restlessness. Peace is when there is no mind.
So peace of mind – no commodity like this exists. If mind is there, then peace is not. If peace is there then mind is not. But to write a book “Peace of No Mind” … nobody is going to purchase it.