At some point you will find yourself looking the wrong way. You will be looking at the past, with rose tinted glasses mind you. You will forget the way that you were feeling at the time, since that’s not what the mind wants you to remember. Instead you will remember and miss the wrong friends you had at that time, the love you felt for the wrong person, and the best parts of the job you walked away from. That’s the funny thing about the rearview mirror. It lets you see the best part of what’s behind you without letting you see the whole picture.
PS- It’s still best to leave it, and all the people, where you left it the last time.