Sattva is the chief of the qualities of nature. It embodies harmony. Let us know the existence of harmony in relation to the universe. To quote Dryden:

From harmony, from heavenly harmony
This universal Frame began:
From harmony to harmony
Through all the compass of the notes it ran,
The diapason closing full in Man.

The possessor of the Sattvic quality has undoubtedly a heart of gold. He knows that his life has a significance of its own. His breath is pure. His patience is luminous. Unparalleled is his fortitude. Infallible is his certainty.