Nisargadatta MaharajJust keep in mind the feeling 'I am', merge in it, till your mind and feeling become one. By repeated attempts you will stumble on the right balance of attention and affection and your mind will be firmly established in the thought-feeling 'I am'. Whatever you think, say, or do, this sense of immutable and affectionate being remains as the ever-present background of the mind.

Nisargadatta Maharaj

Taittirīya Upaniṣad Reference Materials:

Video/Audio Lectures

Swami Tadatmananda
27 classes (~60 mins each)

Swami Nikhilananda
12 classes (~75 mins each)

Taittiriya Upanishad - Brahmananda Valli - Ch 2, Sec 1, Intro and Sh.1

Swami Anubhavananda
7 classes (~75 mins each) on 3rd Chapter

Taittereya Upanishad 3rd Chapter, 2 of 7

Swami Sarvapriyananda
Defining God, based on Taittiriya Upanishad (~90 min talk)

Swami Sarvapriyananda at IITK: Defining God, based on Taittiriya Upanishad

Swami Paramarthananda
51 classes (~55 mins each)

Swami Dayananda Saraswati
13 classes (~60 mins each) on Ananda Mimamsa

Swami Sarveshananda
11 classes (~90 mins each)