Eeswara viruttam is a tamil classic book on philosophy narrating the aesthetics of nature, lifestyle and spiritual aspects in a poetic style called viruttam. The work is a spiritual classic and does not represent any sect or religion. The name “Eeswara” because the book explores the magnanimity and the simplicity of the utmost light and that utmost is termed by that name “Eeswara”. The name also represents Lord Shiva.