The Vibrating Universe synthesizes the superstring theory of modern physics and the vibration concept of Advaita Vedanta and Kashmiri Saivism. The philosophical problem of monism versus pluralism as given in Indian philosophy, Western philosophy and classical as well as modern science has been analytically presented. In this attempt dualism and pluralism have been rejected and non-dualism has been re-established. A vibration theory has been successfully brought out with a fusion of the doctrines of the Vedantic vibration the Saiva vibration and the superstring vibration of modern physics. A confluence of the concepts of the non-dualistic Vedanta, Kashmiri Saiva monism, cosmology, astrophysics, superstring theory, relativity theory and quantum mechanics is clearly visible in the book. As the vibrations of a violin string produce a multiplicity of musical notes, so does the superstring that vibrates and thereby generates the apparent plurality of the universe. The Reality is one and the only one that always remains unmanifested and unperceived, although not unexperienced. The power of the Reality manifests through the plurality of the phenomenal universe - Maya or Prakrti is constituted of three strings (sattva, rajas and tamas) that vibrate to produce the pluralistic, phenomenal universe.