Talk:The Seven Strictures/@comment-195.194.178.189-20130828122814/@comment-5607198-20131218101005

Errant means wandering, trailing off the correct path. The line is saying "don't let your mind wander or you'll lose sight of what's important".

If you wanna get pissy about details, make sure you aren't being more ridiculous than the person you are replying to.