The Soundarya Lahari is a famous literary work in Sanskrit attributed to Adi Shankara. It is also known as "The waves of Beauty" and consists of two parts: Ananda Lahari, meaning waves of happiness (first 41 stanzas), and Soundarya Lahari, the next 59 stanzas. It is believed that Lord Ganesha himself had written the Ananda Lahari on Mount Meru, and Sage Goudapada learned it from there and taught it to Adi Shankara. Adi Shankara himself added the rest of the 59 stanzas and completed it.
The Soundarya Lahari is not only a poem but also a tantra textbook, giving instructions on Puja and offerings, many yantra, almost one to each shloka, describing the tantra technique of performing devotion connected to each specific shloka, and details the results ensuing therefrom. There are more than 36 commentaries on the Soundarya Lahari in Sanskrit itself.
The benefits of chanting Soundarya Lahari are believed to be both material prosperity and liberation to the devotees, according to Scriptures. Each shloka can be used to achieve a particular material/spiritual benefit as described in the Shrividya tradition.