Bhashya
प्रतीकं मुखेनेत्येतत् ।स देवानपिगच्छति स ऊर्जमुपजीवतीति प्रशंसा ॥ २ ॥
In plain words
This refers to approaching through the mouth as a symbol. He attains the deities and subsists on supreme spiritual vigor—this is the concluding praise.
Close to the Sanskrit
Symbolically through the mouth, this is it. He reaches the gods, he lives upon divine vigor—this is the praise.