Brahma-vidyā through Yoga: Restraint, Pranava Japa, and Samādhi leading to Mokṣa
षट्त्रिंशन्मात्रकः श्रेष्ठश्चतुर्विंशतिमात्रकः / मध्यो द्वादशमात्रस्तु ओङ्कारं सततं जपेत्
ṣaṭtriṃśanmātrakaḥ śreṣṭhaścaturviṃśatimātrakaḥ / madhyo dvādaśamātrastu oṅkāraṃ satataṃ japet
إنَّ نُطق «أوم» (Oṁ) بستٍّ وثلاثين مَاتْرَا هو الأَفْضَل، وبأربعٍ وعشرين مَاتْرَا هو أيضًا جليل؛ وأمّا المقدار المتوسط فاثنتا عشرة مَاتْرَا. فلْيُداوِم المرء على ترديد «أومكارا» دائمًا.
Lord Vishnu (in instruction to Garuda/Vainateya)
Concept: Pranava-japa with regulated mātrā (duration) refines attention and steadies mind toward liberation.
Vedantic Theme: Oṁ as śabda-brahman leading to para-brahman; upāsanā as a support for nididhyāsana.
Application: Practice Oṁ-japa daily with a chosen mātrā-count (12/24/36) suited to capacity; keep rhythm steady and attention on resonance rather than volume.
Primary Rasa: shanta
Related Themes: Garuda Purana 1.235.25 (Pranava knowledge; Viṣṇu-mantra; Gāyatrī); Garuda Purana 1.235.26-28 (pratyāhāra, dhāraṇā with prāṇāyāma)
This verse presents Oṁ as a constant japa-practice and even specifies graded mātrā-lengths, implying that disciplined, measured recitation of Oṁ is a central, repeatable sādhana.
They indicate the time-length of the utterance of Oṁ in mantra-recitation; 12 mātrās is described as the medium measure, 24 as a higher measure, and 36 as the best (most refined/extended) form of chanting.
Maintain a steady daily practice of Oṁ repetition, gradually training attention and breath to chant it in a measured, unhurried way (starting with a comfortable length and moving toward more sustained recitation).