One of my the most heart warming projects is a decade long project of posting short audio teachings on Internet audio sites. One of the thousands of listeners gave the greatest of complements:
your words always give me hope
that there is someone on the same frequency out there.
the frequency of the universe.
What could that frequency be? Perhaps the ringing echoes of the Big Bang creation event. Maybe the sound of Aum (om) as suggested in the ancient Upanishads. Or, is it the frequency of truth - so sublime that only a quiet soul can hear?