When things do not go our way, it is easy to believe the mind's condemnations. By doing so, we put ourselves into a far deeper hell than the true event could possibly cause. To avoid that hell is to choose to be re-minded.
In the Tibetan Buddhist tradition, according to the Dalai Lama, a person should closely observe a teacher for three years before consenting to be his/her student. It takes that long, apparently, to clearly differentiate Mara from Buddha.