In plain words
Desire, anger, greed, pride and envy, these six inner enemies, are simply killing man. The moon has sixteen kalās. Only when these sixteen kalās reach their full state does it, having reached that full state and with no such stain in it, give the world a calm radiance. Only when the moon has filled out its sixteen kalās is it an ideal to the world. But in man there are sixteen kalās. When we root out the sixteen kalās, humanness has a great radiance. What are these sixteen kalās? The inner enemies are six. The madas are eight. Add the two guṇas, rajas and tamas, and they become sixteen guṇas. We must root out these sixteen. We must believe in the divinity in everything. When we try to live without that, it works to some extent to spoil humanness. We must lessen, to some extent, the feeling of being the doer and the enjoyer that is in man. When we offer everything to God in every way and go on doing good deeds in the state where all is Brahman, God Himself helps.
It is something you know from the Bhāgavata. The supreme devotee Pōtana, beginning the Bhāgavata,
What is uttered is the Bhāgavata, they say; He who makes it uttered is Rāmabhadra, they say; if I utter it, it takes away the round of birth, they say; so I shall utter it; why utter any other tale?
The one who said it is God. He who makes it uttered is God. He who utters it is God. The one who writes is God too. The one who makes it written is God too. With the thought, "He has somehow taken me as a mere instrument and is making me write in this way," Pōtanāmātya offered it to God at the very beginning and began his poem. Because he wrote this Bhāgavata with such a spiritual feeling, the divinity called Tat tvam asi lies contained here, in this one verse. "What is uttered is the Bhāgavata, they say; He who makes it uttered": that He is God. "If I utter": that I, this one, is the jīvātma. He: the Paramātma. I: the jīvātma. So Tat tvam asi, the oneness of these two, is this Bhāgavata, he said.