Those words touch on duty with its secret ritual and are worthy of being heard by the great Rishis as also by men having faith and desirous of achieving their own good.
रहस्यं धर्मसंयुक्तं शक्यं श्रोतुं महर्षिभिः। श्रद्दधानेन मन आत्मनो हितमिच्छता॥