A spiegel is a type of mirror, usually a big one.
A spiegel can make people think of seeing themselves, getting ready, or checking how they look.
Examples:
I can see myself in the spiegel.
The spiegel on the wall is very big.
The spiegel in the bathroom is clean.
The spiegel in the store makes me look funny.
In the story, the spiegel could talk!
The spiegel in the palace is made of gold.