अपरे नियताहाराः प्राणान्प्राणेषु जुह्वति।
सर्वेऽप्येते यज्ञविदो यज्ञक्षपितकल्मषाः।।4.30।।
।।4.29 4.30।।दूसरे कितने ही प्राणायामके परायण हुए योगीलोग अपानमें प्राणका पूरक करके प्राण और अपानकी गति रोककर फिर प्राणमें अपानका हवन करते हैं तथा अन्य कितने ही नियमित आहार करनेवाले प्राणोंका प्राणोंमें हवन किया करते हैं। ये सभी साधक यज्ञोंद्वारा पापोंका नाश करनेवाले और यज्ञोंको जाननेवाले हैं।
Commencing with artha-yagnas or offering of donations for worship and propitiation of the Supreme Lord up to the yagna of pranayama or breath control, different varieties of karma yoga or prescribed Vedic activities are given that are engaged in by persons according to qualification. Clearly comprehending the purport of chapter 3, verse 10 that all beings are blessed and benefited by yagna; these practitioners have dedicated their lives to the performance of yagna and yet they do not neglect the regular daily duties as well as the occasional duties as prescribed in the Vedic injunctions. Thus they have acted for their ultimate welfare and destroyed all of their sinful reactions from past actions. Maintaining their existence by partaking exclusively only of the sanctified food offered in yagna these practitioners of karma yoga eventually realise the atma or soul within their etheric heart and perceive the eternal Brahman or the spiritual substratum pervading all existence which leads to the Supreme Lord.