What do you mean, be careful when you go east?

This sentence shows that someone should be careful when doing things in the East, which means that some kind of danger will happen to him somewhere in the East. If you are not careful, you will bring this danger to yourself and threaten your property or life. Therefore, when doing things in the East, he must be vigilant.

However, I think that no matter which direction you go to do something, you must pay attention to your own safety, because paying attention to your own safety will play a role in preparing for anything, so that whatever you do, you will be in an invincible position.