The diamonds are one of the hardest materials on the earth, and they cannot be cut against cross grain. Moreover, they have knots in various parts. When a cutter encounters the knots, he cannot do anything. He cannot keep cutting. However, if he gives up, a child of the light cannot be out from the rough diamond.
When he cannot keep cutting, he starts talking to the diamond as if he casts a spell.
“If you are stubborn like that, you will not glow.”
“I like you a lot…”
“Give me a break.”
“Do you want to be nice to each other?”
“That’s it!!”
Those are mumbles from a cutter. If he keeps talking to it, it slowly started to be cut little by little. Then, he can overcome the knot. Physically, it cannot be cut. However, cutter’s intention to make it glow, and his kindness to the diamonds will make it happens. I always wonder how it happens, though.