The Precious Jewel

On this dark and cold hearth is stacked
Wood and tinder no spark will start
Where fire should be there is a void
The hearth contains a missing piece
No brick, no stone or mason's trick
Will ever fill this empty place.

The master comes and in his hand
He holds a crystal filled with fire
It fits the hole and fills it up
And by this jewel, the fuel ignites
It makes a fire, and fills this dark
Lonely house with warmth and light.