Story: Sakthi Nayanar

Periyapuranam

Sakthi Nayanar (sometimes called Shaktinatha) did not tolerate any one who spoke ill about Shaivas. He is said to have forcibly pull out the tongues of the offender with tongs and cut them off with sharp knife called satti, which gave him his name.

Image of Satguru Sivaya Subramuniyaswami
Never allow yourself to be complacent in your spiritual attainments. Always continue to strive. Even rishis, swamis and yogis who have totally realized Parasiva continue to work on themselves from within themselves.
—Gurudeva