Nisargadatta MaharajQ: No question of reconditioning, changing, or eliminating the mind? M: Absolutely none. Leave your mind alone, that is all. Don't go along with it. After all, there is no such thing as mind apart from thoughts which come and go obeying their own laws, not yours. They dominate you only because you are interested in them. It is exactly as Christ said 'Resist not evil'. By resisting evil you merely strengthen it.

Nisargadatta Maharaj

Aitareya Upaniṣad Reference Materials:

Video/Audio Lectures

Swami Paramarthananda
14 classes (~55 mins each)

Swami Nikhilananda
7 classes (~75 mins each)

Aitareya Upanishad - Introduction, Ch 1, Sec 1 - Shloka 2 to 4