Adhyāya 42 — Mahābhūta–Indriya–Adhyātma-Vyavasthā
Brahmā’s Instruction on Elements and Faculties
चतुर्थमापो विज्ञेयं जिह्दा चाध्यात्ममुच्यते
caturtham āpo vijñeyaṃ jihvā cādhyātmam ucyate
వాయుదేవుడు పలికెను— నాలుగవ తత్త్వము జలమని తెలుసుకొనుము; జిహ్వ కూడా అధ్యాత్మ-క్షేత్రమునకు చెందినదని చెప్పబడును.
वायुदेव उवाच
The verse links cosmological principles (the elements) with the inner human constitution: Water is identified as the fourth element, and the tongue is classified under adhyātma—an inward, self-related framework—encouraging self-knowledge through mapping the outer world to inner faculties.
Vāyu-deva is instructing an interlocutor in a doctrinal exposition, enumerating categories: he specifies the fourth element as Water and simultaneously assigns the tongue to the adhyātma (inner) domain as part of a systematic teaching on elements and faculties.