SB 11.14.34
Devanāgarī
हृद्यविच्छिन्नमोङ्कारं घण्टानादं बिसोर्णवत् । प्राणेनोदीर्य तत्राथ पुन: संवेशयेत् स्वरम् ॥ ३४ ॥
Text
hṛdy avicchinam oṁkāraṁ ghaṇṭā-nādaṁ bisorṇa-vat prāṇenodīrya tatrātha punaḥ saṁveśayet svaram
Synonyms
hṛdi—in the heart;avicchinnam—uninterrupted, continuous;oṁkāram—the sacred vibrationom;ghaṇṭā—like a bell;nādam—sound;bisa-ūrṇa-vat—like the fiber running up the lotus stalk;prāṇena—by the wind ofprāṇa;udīrya—pushing upward;tatra—therein (at a distance of twelve thumb-breadths);atha—thus;punaḥ—again;saṁveśayet—one should join together;svaram—the fifteen vibrations produced withanusvāra..
Translation
Beginning from the mūlādhāra-cakra, one should move the life air continuously upward like the fibers in the lotus stalk until one reaches the heart, where the sacred syllable om is situated like the sound of a bell. One should thus continue raising the sacred syllable upward the distance of twelve aṅgulas, and there the oṁkāra should be joined together with the fifteen vibrations produced with anusvāra.