An Audio Course on Vedanta Texts- Upanisad : Kenopanisad by Swami Dayananda Saraswati.
By whom (Kena, i.e. by whose mere intent) is the impelled mind directed ? With this profound question, the Kena Upanisad, which is part of the Sama Veda, begins. One of the shortest Upanishad, Kena offers one of the most thorough presentations of Vedanta in its first two chapters. The prose of the last two chapters narrates how the gods take credit for a victory won by Brahman.
Failing to recognize Brahman, they are taken to task until Indra finally approaches the Goddess Uma, who reveals the knowledge of the Absolute Brahman to him. Recognizing that all of us may not be such highly qualified aspirants, Kena ends on a compassionate note as a student is permitted to ask, Revered Sir, please teach me the Upanishad” Despite its compactness, Kena, which is part of samaveda, is significant. Shankara wrote two Bhasyas on it (Padabhasya and Vakyabhasya).