Ramana MaharshiIf one remains merely as consciousness [that is, as ‘I am’] ignorance will not exist. Hence, ignorance is false; Self-consciousness alone is real. When correctly known, it is ignorance to say that there is ignorance. Verily, pure consciousness is our nature. Thus should you know.

Ramana Maharshi

Praśna Upaniṣad Reference Materials:

Video/Audio Lectures

Swami Paramarthananda
21 classes (~55 mins each) 1, 2

Swami Anubhavananda
12 classes (~45 mins each)

Prashnopanishad an overview of life 11

Swami Nikhilananda
7 classes (~80 mins each)

Prasnopanishad - Introduction and Question 1 - Shloka 1 to 4