[Idiom] place of safety

[sh3000]

Hi.
What does it mean to move an attacked chess piece to 'a place of safety' and how does it differ from 'a safe place' or things like that?
Thanks in advance!

 

[emsr2d2]

It means simply to move the chess piece to a different square where it is in less danger of being "taken" (removed from the board by a piece of the opposing player).