Saundarya Lahari

'the waves of beauty') is a famous literary work in Sanskrit attributed to Pushpadanta as well as Adi Shankara.

Its hundred and three shlokas (verses) praise the beauty, grace and munificence of goddess Tripura Sundari in the form of Parvati.

Thus, verses 1–41 are the original work of Shiva, shedding great light on the ancient rituals of Tantra, Yantra, and various powerful mantras.

[7] Yet another legend says that once when Adi Shankara was visiting Kailash, Shiva was writing about the beauty of goddess Parvati on the walls of their home.

The Saundarya Lahari is not only a collection of holy hymns, but also a Tantra textbook,[7] giving instructions on puja, Sri-Yantra, and worshiping methods, 100 different hymns, 100 different yantra, almost one to each shloka; it describes the appropriate tantra method of performing devotion connected to each specific shloka; and details the results ensuring therefrom.

The same idea is brought out in verse 24, "Brahma creates the universe, Vishnu sustains, Rudra destroys, and Maheshwar absorbs every thing and assimilates into Sadashiva.

On receiving mandate from thy creeper like brows, Sadasiva restores everything into activity as in the previous cycle."

John Tavener arranged 100 verses of the Soundarya Lahari as Flood of Beauty, an orchestral work.

Adi Shankara with disciples, drawing by Raja Ravivarma , 1904.
The Sri Chakra, frequently called the Sri Yantra .