Ramana MaharshiYour duty is to be and not to be this or that. 'I am that I am' sums up the whole truth. The method is summed up in the words 'Be still'. What does stillness mean? It means destroy yourself. Because any form or shape is the cause of trouble. Give up the notion that 'I am so and so'.

Ramana Maharshi

Dṛg Dṛśya Viveka
Discrimination between Seer and Seen, by Vidyāraṇya (not 100% confirmed)

Reference Materials:

Video/Audio Lectures

Swami Paramarthananda
31 classes (~60 mins each)

Swami Advayananda
12 classes (~65 mins each)

02 - Drig Drishya Vivek - Swami Advayananda - The Inner Quest - Youth Camp at Chinmaya Maauli

Swami Sarveshananda
7 classes (~55 mins each)

Swami Tadatmananda
7 classes (~70 mins each)

Swami Anubhavananda
9 classes (~65 mins each)

Drug drushya viveka 2 of 9 @ Bengaluru Retreat 2016 (English) NR YT

Swami Sarvapriyananda
12 classes (~60 mins each)

Introduction to Vedanta Part 2 - Swami Sarvapriyananda - January 19, 2016