Tirukkural 411: Heaing Knowledge

Wealth (gained) by the ear is wealth of wealth; that wealth is the chief of all wealth.

Image of Satguru Sivaya Subramuniyaswami
The body of the soul is constant radiance. Its mind is superconsciousness, containing all intelligence, and is constantly aware, does not sleep and is expanding awareness as the soul body matures.
—Gurudeva