MANO NASA
Unless the force that activates thought is driven deeply within and destroyed, it is impossible to enjoy one’s own experience of jnana.
Muruganar: In having no settled principles, nothing else matches the mind. Its perception and evidence are completely unreliable. Its nature is to prostitute itself. At an opportune moment for deceiving the sadhaka, it will jump outwards towards sense objects. So long as the mind survives, its nature will not change. Hence, the mind should be destroyed at its roots by unceasing dhyana and vichara. Until the mind has been destroyed, no sensible aspirant should remain satisfied and think he has accomplished all that needs to be done.
Padamalai, p 145, 146