Adhyāya 42 — Mahābhūta–Indriya–Adhyātma-Vyavasthā
Brahmā’s Instruction on Elements and Faculties
उद्धिज्जानि च तान्याहुर्भूतानि द्विजसत्तमा: । द्विजवरो! जो पृथ्वीको फोड़कर समयपर उत्पन्न होते हैं, उन प्राणियोंको उद्धिज्ज कहते हैं
udbhijjāni ca tāny āhur bhūtāni dvijasattamāḥ |
वायुरुवाच—द्विजसत्तम, ये भूताः काले पृथिवीं भित्त्वा प्रादुर्भवन्ति, तान् ऋषय उद्धिज्जानिति आहुः।
वायुदेव उवाच
The verse teaches a traditional dharmic-cosmological classification of life: some beings are ‘udbhijja’, defined as those that emerge by splitting the earth at the appropriate season—highlighting an ordered, time-bound natural law (ṛta) recognized by sages.
Vāyu-deva is instructing a twice-born interlocutor in a didactic passage, explaining the category ‘udbhijja’ among types of living beings, using the sages’ authoritative definition.