Avatarika
व्याख्यातो वाङ्मनःप्राणानामाधिभौतिको विस्तारः ; अथायमाधिदैविकार्थ आरम्भः—
In plain words
The material exposition concerning speech, mind, and prāṇa has now been completed; we now begin their exposition in relation to the cosmic deities.
Close to the Sanskrit
The physical expansion of speech, mind, and prāṇas has been explained; now begins the subject matter pertaining to the cosmic deities.