The japa contains the word namah. It means that state in which the mind does not manifest apart from the Self.

Ramana Maharishi: The japa contains the word namah. It means that state in which the mind does not manifest apart from the Self. When the state is accomplished there will be an end of the japa. For the doer disappears and so also the action. The Eternal Being is alone left. Japa should be made until that state is reached. There is no escape from the Self. The doer will be automatically drawn into it. When once it is done the man cannot do anything else but remain merged in the Self.