Bhashya
किंच, सप्त शीर्षण्या प्राणा तस्मादेव पुरुषात् प्रभवन्ति ।तेषा सप्त अर्चिष दीप्रय स्वस्वविषयावद्योत-नानि ।तथा सप्त समिध सप्त विषया , विषयैर्हि समि-ध्यन्ते प्राणा ।सप्त होमा तद्विषयविज्ञानानि , 'यदस्यविज्ञान तज्जुहोति' इति श्रुत्यन्तरात् ।किंच, सप्त इमेलोका इन्द्रियस्थानानि, येषु चरन्ति सचरन्ति प्राणाइति विशेषणात् ।प्राणा यषु चरन्तीति प्राणाना विशेष-णमिद प्राणापानादिनिवृत्त्यर्थम् ।गुहाया शरीरे हृदये वास्वापकाले शेरत इति गुहाशया ।निहिता स्थापिताधात्रा सप्त सप्त प्रतिप्राणिभेदम् ।यानि च आत्मया-जिना विदुषा कर्माणि कर्मफलानि चाविदुषा च कर्माणितत्साधनानि कर्मफलानि च सर्व चैतत्परस्मादेव पुरुषात्स-र्वज्ञत्प्रसूतमिति प्रकरणार्थ ॥
In plain words
Furthermore, the seven vital breaths in the head emerge from that same Supreme Person. Their seven flickering flames are the living lights that reveal each sense-object. Their fuel is those very objects, for the senses catch fire through them. The seven oblations are the acts of perceiving those objects, as another scripture declares: 'Whatever one knows, that he offers into the fire.' These seven worlds are the sensory stations, for the text specifies that 'the breaths move within them'—a phrase meant to distinguish them from the inner winds like prana and apana. Resting in the cave of the body or heart during sleep, they are called cave-dwellers, placed in sets of seven by the Creator for every living creature. All the deeds and fruits of the wise who worship the Self, and all the deeds, instruments, and fruits of the ignorant—every single one of these arises solely from that Supreme, Omniscient Person. This is the central teaching of this text.
Close to the Sanskrit
Furthermore, the seven vital breaths located in the head originate from that very Purusha. Of those, the seven flames are the luminous illuminators of their respective sense objects. Similarly, the seven fuel elements are the seven sense objects, for the breaths are enkindled by the sense objects. The seven oblations are the cognitions of those objects, from another Vedic text stating 'what cognition he has, that he sacrifices.' Furthermore, these seven worlds are the abodes of the senses, due to the qualifying specification that 'the breaths move about in which.' The qualification 'in which the breaths move' is given regarding the breaths to exclude internal breaths like prana and apana. Those which lie down in the cave—the body or the heart—during the time of sleep are called cave-dwellers, established by the Creator in sets of seven for each individual living being. And whatever actions and fruits of actions belong to wise sacrificers, as well as the actions, means, and fruits of actions belonging to the ignorant—all this is born from that very supreme, omniscient Purusha alone; this is the purport of the section.