Prabhu Pada, « PURPORT », Bhagavad-gita As It Is – Macmillan 1972 Edition, Prabhupad Book Stores (consulté le ) : « One who knows the transcendental nature of My appearance and activities does not, upon leaving the body, take his birth again in this material world, but attains My eternal abode, O Arjuna. »
Prabhu Pada, « PURPORT », Bhagavad-gita As It Is – Macmillan 1972 Edition, Prabhupad Book Stores (consulté le ) : « One who is thus transcendentally situated at once realizes the Supreme Brahman. He never laments nor desires to have anything; he is equally disposed to every living entity. In that state he attains pure devotional service unto Me. »
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Nilachal Saraswat Sangh (Purī, India), Sadguru Swami Nigamananda, Nilachal Saraswat Sangha, Puri, , "The Bhattacharya Family of Kutabpur" éd. (lire en ligne), p. 8
(en) Moni Bagchee, Sadguru Nigamananda : A Spiritual Biography, Assam Bangiya Saraswat Math, (lire en ligne), p. 72
(en) Sadguru Swami Nigamananda, Nilachal Saraswat Sangha, Puri, , 188 p. (lire en ligne)
(en) Nigamānanda, The Divine Universal Gospels of Sri Nigamananda : Translation, a Lucid Word to Word Rendering to English, Amitabh Giri, (lire en ligne), p. 8
(en) Moni Bagchee, Sadguru Nigamananda : A Spiritual Biography, Assam Bangiya Saraswat Math, (lire en ligne), p. 73
(en) Sadguru Swami Nigamananda, Nilachal Saraswat Sangha, Puri, (lire en ligne), p. 140
(en) Monika Thiel-Horstmann, Bhakti in current research, 1979-1982 : proceedings of the Second International Conference on Early Devotional Literature in New Indo-Aryan Languages, St. Augustin, 19-21 March 1982, D. Reimer Verlag, (ISBN978-3-496-00750-0, lire en ligne), p. 118-120
(en) Moni Bagchee, Sadguru Nigamananda : A Spiritual Biography, Assam Bangiya Saraswat Math, (lire en ligne), p. 112
(en) Swami Biśuddhānanda Sarasvatī, In Quest of Myself : An Autobiography, Nigamananda Ashram, (lire en ligne), p. 55
(en) Satya Pal Ruhela, The Spiritual Philosophy Of Shri Shirdi Sai Baba, Diamond Pocket Books (P) Ltd., , 174 p. (ISBN978-81-7182-090-0, lire en ligne)
(en) The Voice of Śaṅkara : Śaṅkara-bhāratī, Ādi Śaṅkara Advaita Research Centre., (lire en ligne), p. 140
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(en) Benoy Gopal Ray, Religious Movements in Modern Bengal, Visva-Bharati, (lire en ligne), p. 102
(en) Sadguru Swami Nigamananda, Nilachal Saraswat Sangha, Puri, (lire en ligne), p. 339
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(en) Sadguru Swami Nigamananda, Nilachal Saraswat Sangha, Puri, (lire en ligne), p. 295
(en) Moni Bagchee, Sadguru Nigamananda : A Spiritual Biography, Assam Bangiya Saraswat Math, (lire en ligne), p. 76
(en) Nigamānanda, The Divine Universal Gospels of Sri Nigamananda : Translation, a Lucid Word to Word Rendering to English, Amitabh Giri, (lire en ligne), p. 122
(en) Moni Bagchee, Sadguru Nigamananda : A Spiritual Biography, Assam Bangiya Saraswat Math, (lire en ligne), p. 111-112
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(en) Sadguru Swami Nigamananda, Nilachal Saraswat Sangha, Puri, (lire en ligne), p. 207
(en) Moni Bagchee, Sadguru Nigamananda : A Spiritual Biography, Assam Bangiya Saraswat Math, (lire en ligne), p. 256
(en) Moni Bagchee, Sadguru Nigamananda : A Spiritual Biography, Assam Bangiya Saraswat Math, (lire en ligne), p. 9
(en) Linda Johnsen, Meditation is Boring? : Putting Life in Your Spiritual Practice, Himalayan Institute Press, , 126 p. (ISBN978-0-89389-179-4, lire en ligne), p. 71-121
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(en) Nigamānanda, The Divine Universal Gospels of Sri Nigamananda : Translation, a Lucid Word to Word Rendering to English, Amitabh Giri, (lire en ligne), p. 11
(en) Nigamānanda, The Divine Universal Gospels of Sri Nigamananda : Translation, a Lucid Word to Word Rendering to English, Amitabh Giri, (lire en ligne), p. 19
(en) Sadguru Swami Nigamananda, Nilachal Saraswat Sangha, Puri, (lire en ligne), p. 278
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(en) Swami Biśuddhānanda Sarasvatī, In Quest of Myself : An Autobiography, Nigamananda Ashram, (lire en ligne), p. 191
(en) Moni Bagchee, Sadguru Nigamananda : A Spiritual Biography, Assam Bangiya Saraswat Math, (lire en ligne), p. 129
(en) Moni Bagchee, Sadguru Nigamananda : A Spiritual Biography, Assam Bangiya Saraswat Math, (lire en ligne), p. 130
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(en) Mohan Lal, Encyclopaedia of Indian Literature : Sasay to Zorgot, Sahitya Akademi, , 820 p. (ISBN978-81-260-1221-3, lire en ligne), p. 3961
(en) Benoy Gopal Ray, Religious Movements in Modern Bengal, Visva-Bharati, (lire en ligne), p. 100
(en) Moni Bagchee, Sadguru Nigamananda : A Spiritual Biography, Assam Bangiya Saraswat Math, (lire en ligne), p. 49
(en) Moni Bagchee, Sadguru Nigamananda : A Spiritual Biography, Assam Bangiya Saraswat Math, (lire en ligne), p. 50