The 108 Upanishads are considered the essence of all the Vedas, and Ishopanishad is foremost among them. Discover the distilled essence of all knowledge in these eighteen enlightening verses. For thousands of years, people on a spiritual quest have consulted the mystical, intensely philosophical Upanishads. As the name implies (upa%u2014near; in%u2014down; shad%u2014to sit), one is advised to sit near a spiritual teacher to learn. To learn what? This Upanishad%u2019s name gives the clue: Isha means %u201Cthe supreme controller.%u201D Let us sit near the spiritual guide to learn about the supreme controller: God. The process is simple, provided one learns from an authentic guide. The translation and commentary of A. C. Bhakti Vedanta Swami Prabhupada strictly adheres to the book%u2019s intention, assuring you of a legitimate understanding of the depths of Upanishad knowledge.