The Upanishad asks, is it actually experientable or not? And then the most beautiful mantra comes. Let's go to the last mantra of this section and a very great Klimax. Nathatrasuryobhati nachandrata rakam nema vidutobhantikutoyamadmi tamebabhantam manubhati, sirvam. Dasya-bhasa sarvamidam vibhati. That is not revealed by the sun or the sun does not reveal it,. Nor the moon, nor the stars, nor these flashes of lightning. This is Anid Desham, Paramam, so come
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).