Nisargadatta MaharajThe entire field of consciousness is only as a film, or a speck, in ‘I am’. This ‘I am-ness’ is, being conscious of consciousness, being aware of itself. And it is indescribable, because it has no attributes.

Nisargadatta Maharaj

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) | Archive.org ver: 1, 2, 3

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