Your fellow man is your mirror. If your own face is clean, the image you perceive will also be flawless. But should you look upon your fellow man and see a blemish, it is your own imperfection that you are encountering - you are being shown what it is that you must correct within yourself.
Baal Shem TovThe world is full of wonders and miracles but man takes his little hand and covers his eyes and sees nothing.
Baal Shem TovIf a man has beheld evil, he may know that it was shown to him in order that he learn his own guilt and repent; for what is shown to him is also within him.
Baal Shem Tov