Q: Having heard this truth, why does one not remain content?
Ramana Maharshi: Because samskaras have not been destroyed. Unless the samskaras cease to exist, there will always be doubt and confusion. All efforts are directed to destroying doubt and confusion. To do so their roots must be cut. Their roots are the samskaras. These are rendered ineffective by practice as prescribed by the Guru. The Guru leaves it to the seeker to do this much so that he might himself find out that there is no ignorance. Hearing the truth [sravana] is the first stage. If the understanding is not firm one has to practice reflection [manana] and uninterrupted contemplation [nididhyasana] on it. These two processes scorch the seeds of samskaras so that they are rendered ineffective.
______________________________________Be As You Are (p. 29)