Nisargadatta MaharajThe sense of being, of 'I am' is the first to emerge. Ask yourself whence it comes, or just watch it quietly. When the mind stays in the 'I am' without moving, you enter a state that cannot be verbalized but can be experienced. All you need to do is try and try again.

Nisargadatta Maharaj

Svāmī Viditatmānanda
From Swami Dayananda (Arsha Vidya Lineage).

Video/Audio Lectures

Upaniṣad

Chāndogya Upaniṣad
359 classes (~75 mins each)

02 Chhandogya Upanishad

Kaivalya Upaniṣad
8 classes (search for "Kaivalyopanisad" on the linked page)

Bhagavad Gītā

Chapter 1
5 classes (~60 mins each)

01 Śrīmad Bhagavad Gītā Chapter 01 ch 1

Chapter 2
24 classes (~60 mins each)

02 Śrīmad Bhagavad Gītā Chapter 02, Verse 10 13

Chapter 3
7 classes (~60 mins each)

06 Śrīmad Bhagavad Gītā Chapter 03, Verse 21 26

Chapter 4
18 classes (~60 mins each)

02 Śrīmad Bhagavad Gītā Chapter 04, Verse Intro

Chapter 5
4 classes (~60 mins each)

03 Śrīmad Bhagavad Gītā Chapter 05, Verse 8 18

Chapter 6
20 classes (~60 mins each)

05 Śrīmad Bhagavad Gītā Chapter 06, Verse 0 1

Chapter 7
11 classes (~60 mins each)

02 Śrīmad Bhagavad Gītā Chapter 07, Verse 0 1

Chapter 8
10 classes (~60 mins each)

04 Śrīmad Bhagavad Gītā Chapter 08, Verse 4 6

Chapter 9
7 classes (~60 mins each)

02 Śrīmad Bhagavad Gītā Chapter 09, Verse 1 4

Chapter 10
8 classes (~60 mins each)

02 Śrīmad Bhagavad Gītā Chapter 10, Verse 2 5

Chapter 11
8 classes (~60 mins each)

07 Śrīmad Bhagavad Gītā Chapter 11, Verse 35 46

Chapter 12
8 classes (~60 mins each)

02 Śrīmad Bhagavad Gītā Chapter 12, Verse 1 2

Chapter 13
25 classes (~60 mins each)

02 Śrīmad Bhagavad Gītā Chepter 13, Verse 1 2

Chapter 14
7 classes (~60 mins each)

02 Śrīmad Bhagavad Gītā Chapter 14, Verse 2 3

Chapter 15
7 classes (~60 mins each)

02 Śrīmad Bhagavad Gītā Chapter 15, Verse 2 3

Chapter 16
6 classes (~60 mins each)

02 Śrīmad Bhagavad Gītā Chapter 16, Verse 1 3

Chapter 17
6 classes (~60 mins each)

02 Śrīmad Bhagavad Gītā Chapter 17, Verse 3 6

Chapter 18
32 classes (~60 mins each)

02 Śrīmad Bhagavad Gītā Chapter 18, Verse 1 0

Brahma Sūtras

First Four Sutras of Brahma Sutras
99 classes (~90 mins each)

002 Brahma sūtra Chathsutri

Advanced Texts

Advaita Makaranda
10 classes (search for "Advaita Makaranda" on the linked page)

Aparokṣānubhūtiḥ
38 classes (~75 mins each)

02 Aparoxanubhuti NRI Camp 2017 Verse 1,2Cotd

Tattva Bodha
9 classes (search for "Tattvabodha" on the linked page)