In the Puranas, Agni and Soma are spoken of at possessing natures that had one and the same result. The gods also are said to have Agni for their mouth. It is on account of these two beings gifted with natures leading to the same result that they are said to be deserving of each other and upholders of the universe."
अपि हि पुराणे भवति एकयोन्यात्मकाव ग्नीषोमौ देवाश्चाग्निमुखा इति एकयोनित्वाच्च परस्परमर्हन्तो लोकान् धारयन्त इति॥