If you hold me up in a meadow so that the sun shines on my blade, the whole meadow will be lit up by my rays, and the horses in the meadow will approach of their own free will.

I can cut through brass. I am no ordinary knife, not when I am in the hands of the one who has been chosen by the princess to be king.

Enchanted Knife in The Enchanted Knife, Violet Fairy Book

Here is a knife that shines like the sun, attracts horses, and cuts through brass. What does it mean to you to ‘cut through the brass’?