When he was a little boy, Nasi-Kita saw that all the possessions being divided among the priests and the priests taking away their portions. He saw something which aroused his faith, his shuddha in himself. What he thought we'll see later. So this Shraddha Viveshya was inspired by, was filled withShraddha with faith. This is Swami Vivekananda loved the kato Upanishad,. For many reasons, it was his favorite Upanishad. But this Shr Addha, the faith, he wanted everybody to have that kind of faith.
Swami Sarvapriyananda teaches the Katha Upanishad, which is one of the most popular Upanishads. The scripture concerns the story of a young man who goes to the house of death to find out what happens after death. The reply describes the nature of reality and the meaning of life.