The mantram becomes one's staff of life and carries one through every ordeal. Each repetition has a new meaning, carrying you nearer and nearer to God.
If as a member of a slave nation I could deliver the suppressed classes from their slavery without freeing myself from my own, I would do so today. But it is an impossible task.
For Hindus to expect Islam, Christianity or Zoroastrianism to be driven out of India is as idle a dream as it would be for Mussalmans to have only Islam of their imagination rule the world.