One must approach a particular type of guru to execute a particular type of duty. Therefore although Viśvarūpa was inferior to the demigods, the demigods accepted him as their guru to conquer the demons.
Since you are completely aware of the Supreme Brahman, you are a perfect brahmana, and therefore you are the spiritual master of all orders of life
Expressions researched:
"Since you are completely aware of the Supreme Brahman, you are a perfect brahmana, and therefore you are the spiritual master of all orders of life"
Srimad-Bhagavatam
SB Canto 6
Since you are completely aware of the Supreme Brahman, you are a perfect brahmana, and therefore you are the spiritual master of all orders of life.
Since you are completely aware of the Supreme Brahman, you are a perfect brāhmaṇa, and therefore you are the spiritual master of all orders of life. We accept you as our spiritual master and director so that by the power of your austerity we may easily defeat the enemies who have conquered us.