Division Lock Question

What happens if I lock my division? What is the purpose of locking your division? Are there any pros/cons of doing so? I looked in the help section but I couldn't seem to find anything detailing this. Thanks!

Locking a division will lock all horses in that division. They will be frozen exactly as they are the moment you lock. They will not get any older, or lose any hunger or thirst. You will not be able to interact with these horses until you unlock them. If horses in this division are entered in shows when they are locked, they will be withdrawn from the shows. Horses listed for stud or sale, or entered in the auction house will be removed from these instances. If you have your horses boarded at another member's stable, they will be removed from the stable without a refund.

Thank you for the explanation! That makes things much clearer.

If horses are entered into shows and then locked, they will not be withdrawn but will still receive stats and points for their winnings .
I did that with my horses yesterday and they received bonuses for placing on the podium. Shows run today while my horses were still locked.

Wait... If you can lock your horses and still show them, does that mean you could do that every day without the horse aging?

You would not be able to do that as the show slots would be used up for the locked horse for that day. You have to progress the horse to the next day to enter in shows and/or school it. 

Okay, good, that's a relief.