They look beyond the literal poetry to explain the "inner meanings" regarding the soul's relationship with the Divine ( Saranagati Cultural Preservation:
The tradition of Vyakyanam flourished between the 11th and 15th centuries, led by the Acharyas (preceptors) who sought to preserve the Alvars' experiences: Thirukurugai Piran Pillan nalayira divya prabandham vyakyanam
The Prabandham represents the pinnacle of the Bhakti movement in South India . It is divided into four main sections: They look beyond the literal poetry to explain