In weight training, "listen to your body" means to stop lifting if you feel bored or unmotivated

No, I believe that it means, if your body is overworked, you should let it rest for a bit and continue if feel like it.

And if a part of your body hurts, it means you really need to sit out!

Also listening to your body means if you are about to go to the gym, but your body feels tired or overworked, then you say to yourself "Okay, today can be a rest day!"

Hope this helped :)

~Aurora