Adhyāya 42 — Mahābhūta–Indriya–Adhyātma-Vyavasthā
Brahmā’s Instruction on Elements and Faculties
प्रजन: सर्वभूतानामुपस्थो<ध्यात्ममुच्यते
prajanaḥ sarvabhūtānām upastho 'dhyātmam ucyate
समस्त प्राणियों की उत्पत्ति कराने वाली प्रजनन-शक्ति—उपस्थ—अध्यात्म के रूप में कही जाती है।
वायुदेव उवाच
The verse identifies procreation as a specific inner principle: the reproductive faculty (upastha) is not merely anatomical but is categorized within adhyātma analysis as a fundamental power responsible for the continuation of life among all beings.
Vāyudeva is explaining an adhyātma-oriented classification of bodily functions and inner principles, defining ‘upastha’ in terms of its universal role in generation (prajana) for all creatures.