[mí tú zhī fǎn]   

迷    途    知    反    迷途：迷路；反：反回。迷了路知道回来。比喻犯了错误能改正。 褒义>

迷途：迷路；反：反回。迷了路知道回来。比喻犯了错误能改正。

Become aware of one's errors and turn back from one's wrong path

迷惑视听    迷天大罪    迷头认影    迷途知返    迷惑不解