Likutei Moharan 34:1/ליקוטי מוהר"ן ל״ד:א׳

1“V’atem Tihiyu Li Mamlekhet Kohanim (You Will Be to Me a Kingdom of Priests) and a holy nation. These are the words that you should speak to the Children of Israel.” (Exodus 19:6)

2It is written: “Disgrace has shattered my heart” (Psalms 69:21). That is, disgrace and humiliation shatter a person’s heart. And the rectification for this is binding one’s heart to the nekudah applicable to one’s heart at that moment. Through this the disgrace that weighs on one’s heart is eliminated.