Sefer HaMiddot, A Curse, Part II/ספר המדות·קללה·חלק שני

1A person who is always cursing comes from the World of Emptiness, while a person who is wont to bless is from the World of Rectification.

2Investigating the World of Emptiness—namely, what is above and what is below, what preceded this world and what follows it—brings a curse. But guarding against such investigation brings blessing.

3A person who is accustomed to cursing will not have clothing for Shabbat.

4A curse has no effect on a person of distinguished ancestry.

5Tending to the needs of the Tzaddik brings freedom and nullifies curses.

6Conducting one’s business affairs faithfully nullifies curses.

7When one person curses another during a time of panic, the curse proves very damaging.