This little piece from the desert Fathers helpfully illustrates Matthew 5:14-16:
Abba Lot went to see Abba Joseph and said to him, “Abba, as far as I can I say my Little Office. I fast a little. I pray. I meditate. I live in peace and as far as I can, I purify my thoughts. What else am I to do?” “What else,” Abba Lot says, “can I do?” Then the old man stood up, stretched his hands towards heaven and his fingers became like ten lamps of fire, and he said to him, “If you will, you can become all flame.”
Jesus, in the passage mentioned, challenges his disciples to be the light of the world. Abba Joseph above tells Abba Lot, “If you will [desire to be a light], you can become all flame.”
But to will the destruction of our most cherished unnatural impulses can be hard.
I want comfort. I want my way. I want my space to myself, my time to myself, my feelings to myself, my whatever.
But Jesus is already the light of the world. So, why not become all flame? Aaron Weiss from mewithoutYou asks that question in his song, “The King Beetle on the Coconut Estate.