Nisargadatta MaharajLet go your attachment to the unreal and the real will swiftly and smoothly step into its own. Stop imagining yourself being or doing this or that and the realization that you are the source and heart of all will dawn upon you.

Nisargadatta Maharaj

Brahma Sūtras Reference Materials:

Video/Audio Lectures

Swami Paramarthananda
390 classes (~55 mins each)

Swami Dayananda Saraswati
99 classes (~60 mins each)

Swami Tattvavidananda
14 classes (search for "Adhyasa Bhasyam" on the linked page)

Swami Viditatmananda
99 classes on First Four Sutras (~90 mins each)

002 Brahma sūtra Chathsutri

Swami Paramananda Bharti
7 classes on Adhyasa Bhashya or Shankaracharya's Intro (~60-90 mins each)

Adhyasa Bhashyam 6