Tirukkural 298: Veracity

Purity of body is produced by water and purity of mind by truthfulness.

Image of Satguru Sivaya Subramuniyaswami
As you sit in meditation in a darkened room, practice directing your consciousness inward, to the center of your brain. If you are able to perceive light within your body, you are on the path to immortality.
—Gurudeva