Samadhi is a topic of great curiosity, amazement, astonishment and mysteriousness. There are stories of people sitting quietly in Samadhi for years together. Stories of Uddhava, Hanumana in Samadhi are startling for many people. Drk-Drsya Viveka, however, explains the concept of Samadhi based on Vedanta philosophy in a lucid, coherent manner. Various types of Samadhi have been explained to help genuine seekers develop the firm belief that, they too practice Samadhi. The success of this treatise indeed lies in this feature.