When you get out of the habit of listening, the voice of the Inner Master becomes weaker and weaker. Not because he is speaking in a quieter voice, but because you have turned down the volume control on the inner instrument of Soul.
There is a stream of consciousness from the mind that constantly goes through you. Chanting your word or HU keeps the stream pure. People who stop chanting or stop the spiritual exercises can all of a sudden fall into depression and negativity. They don't know why.
It happens because that stream of consciousness, the play of the mind, has become polluted.
The singing of this sacred prayer song or name of God purifies the thoughts which lead to your actions. It makes for a happier, more harmonious life.
You'll find by listening more and practicing the spiritual exercises every day that upliftment comes gradually as you are ready for it.
—Sri Harold Klemp
The Spiritual Exercises of ECK