This is a brief sub-gloss. For a fuller reading of this verse, see Madhusūdana, Śaṅkara, or Rāmānuja above.
Therefore, with the syllable 'Om' first pronounced, the acts of sacrifice, giving, and austerity, the acts that have the form of sacrifice and the rest and are enjoined by the rule and prompted by scripture, are always set going by those whose practice is to utter Brahman.
Contemporary English rendering of the Sanskrit bhāṣya, pending scholar review.