In the Kattu Upanishad we are on the third section of the second chapter which is the last section of the whole Upanishad. The form of Brahman does not exist within the range of vision. When this self is revealed through deliberation, it is realized by the intellect and those who know this become immortal. Let me chant the verse first and then we will look at the translation.
Swami Sarvapriyananda teaches the Katha Upanishad, one of India's most revered texts which is also a part of the Vedas. It is a collection of philosophical poems representing a conversation between the sage Naciketas and Yama (god of death). They discuss the nature of Atman, Brahman and Moksha(liberation).