Some men who know the ordinances for sacrificial rites, always offer these great sacrifices in their organs (of sensation), without any (external) effort.
वाच्येके जुह्वति प्राणं प्राणे वाचं च सर्वदा । वाचि प्राणे च पश्यन्तो यज्ञनिर्वृत्तिमक्षयाम् ॥ २३ ॥
Knowing that the (performance of the) sacrifice in their speech and their breath yields imperishable (rewards), some always offer their breath in their speech, and their speech in their breath.
ज्ञानेनैवापरे विप्रा यजन्त्येतैर्मखैः सदा । ज्ञानमूलां क्रियामेषां पश्यन्तो ज्ञानचक्षुषा ॥ २४ ॥
Other Brahmanas, seeing with the eye of knowledge that the performance of those rites has knowledge for its root, always perform them through knowledge alone.
अग्निहोत्रं च जुहुयादाद्यन्ते द्युनिशोः सदा । दर्शेन चार्धमासान्ते पौर्णमासेन चैव हि ॥ २५ ॥
A Brahmana shall always offer the Agnihotra at the beginning or at the end of the day and of the night, and the Darsa and Paurnamasa (Ishtis) at the end of each half-month,