Mandukya Kārika -1; Lecture-57 Mantra 1.7 and Kārika 1.10
as taught in the Three year program at Rishikesh
nāntaḥ prajñam na bahiṣprajñam nobhayat:prajñam na prajñānaghanam na prajñam nāprajñam adṛṣṭamavyavahāryamagrāhyam alakṣaṇamacintyamavyapadeśyamekātmapratyayasāram prapañcopaśamam śāntam śivamadvaitam caturtham manyante sa ātmā sa vijñeyaḥ
नान्तःप्रज्ञं न बहिष्प्रज्ञं नोभयतःप्रज्ञं न प्रज्ञानघनं न प्रज्ञं नाप्रज्ञम्। अदृष्टमव्यवहार्यमग्राह्यमलक्षणमचिन्त्यमव्यपदेश्यमेकात्मप्रत्ययसारं प्रपञ्चोपशमं शान्तं शिवमद्वैतं चतुर्थं मन्यन्ते स आत्मा स विज्ञेयः।।7।।
నాన్తఃప్రజ్ఞం న బహిష్ప్రజ్ఞం నోభయతఃప్రజ్ఞం న ప్రజ్ఞానఘనం న ప్రజ్ఞం నాప్రజ్ఞమ్। అదృష్టమవ్యవహార్యమగ్రాహ్యమలక్షణమచిన్త్యమవ్యపదేశ్యమేకాత్మప్రత్యయసారం ప్రపఞ్చోపశమం శాన్తం శివమద్వైతం చతుర్థం మన్యన్తే స ఆత్మా స విజ్ఞేయః।।7।।
7. Turīya is not that which is conscious of the internal (subjective) world, nor that which is conscious of the external (objective) world, nor that which is conscious of both, nor that which is a mass all sentiency, nor that which is simple consciousness, nor that which is insentient. (It is) unseen (by any sense organ), not related to anything, incomprehensible (by the mind), uninferable, unthinkable, indescribable, essentially of the nature of Consciousness constituting the Self alone, negation of all phenomena, the Peaceful, all Bliss and the Non-dual. This is what is known as the fourth (Turīya). This is the Ātman and it has to be realised.
निवृत्ते: सर्वदु:खानामीशान: प्रभुरव्यय:।
अद्वैत: सर्वभावानां देवस्तुर्यो विभु: स्मृत:॥ १०॥
nivṛtteḥ sarvaduḥkhānāmīśānaḥ prabhuravyayaḥ,
advaitaḥ sarvabhāvānāṁ devasturyo vibhuḥ smṛtaḥ. (10)
నివృత్తే: సర్వదు:ఖానామీశాన: ప్రభురవ్యయ:।
అద్వైత: సర్వభావానాం దేవస్తుర్యో విభు: స్మృత:॥ 10॥
10. In it, indicated as the changeless and the Supreme Lord, there is a cessation of all miseries. It is the one without a second among all entities. It is known as the Turīya (Fourth), effulgent and all-pervading.
For Mantras, meanings and English Bhashya commentary, you may refer to Shri Nikhilanandaji's book available at
https://www.wisdomlib.org/hinduism/book/mandukya-upanishad-karika-bhashya
Bhashyam Texts in PDF and other References:
https://drive.google.com/drive/folders/1RTyqzogjBeU3fL1dPM7uKxJQ9kx9BUnH
Lecture 57 Transcription:
https://docs.google.com/document/d/1i1y2aRCcFsXmI0G8YfbcWMk-C4BmrYyR64XWA9pAd4w/
https://docs.google.com/document/d/1VR4svP-mD853dWW0hEPjCkYtGTKNkSLrEJCfnpNtBgE
https://docs.google.com/document/d/1Yr5FCZNT4YVXCF8X6XPWrqdsx4DlB-haYKAQJOwr9uk/
Regret that some audio files are only partial or missing and could not be recovered.
Any short audios - That is what is available
Lectures 50, 51: Partial; some paragraphs missing
Lecture 85: No sound after 13 mins