tasyāgnir āsyaṁ nirbhinnaṁ
loka-pālo 'viśat padam
vācā svāmśena vaktavyaṁ
yayāsau pratipadyate
tasya - His; agniḥ - fire; āsyam - mouth; nirbhinnam - thus separated; loka-pālaḥ - the directors of material affairs; aviśat - entered; padam - respective positions; vācā - by words; sva-amśena - by one's own part; vaktavyam - speeches; yayā - by which; asau - they; pratipadyate - express.
The mouth of the gigantic universal form of the Lord is the source of the speaking power. The director of the fire element is the controlling deity, or the ādhidaiva. The speeches delivered are ādhyātma, or bodily functions, and the subject matter of the speeches is material productions, or the ādhibhūta principle.