In 1989 Vimala Thakar gave a series of discourses on the Ishavasya Upanishad (Isha). There are one hundred and eight Upanishads. Among them ten Upanishads are considered to be the most important among which the Isha is the first. It is said to contain the essence of all the Upanishadic teachings. The Ishavasya Upanishad talks about the principle, the essence of reality which permeates everything in the cosmos. It emphasizes the unity of life and the wholeness and completeness of reality. The Upanishads are an exploration of the nature of reality. They are concerned directly with your life and how you live it. The Upanishads are a song for the ending of misery and unhappiness. They are a song of celebration of the supreme intelligence which expresses itself as joy, bliss and love.