LEV751 Do not heed superstition. Included in the prohibition is belief in all “bad omens” and superstition. Such beliefs are utter nonsense. For the Jewish nation--recipients of the Torah of Truth--it is inappropriate to lend any credence to any falsehood. In addition, matters such as these can undermine a person's belief in Hashem and His Holy Torah. Lending credence to superstition can lead to heresy and denial of the Torah, for one behaves as if things that happened to him, good or bad, are chance occurrences that have independent power over him, as if Hashem is not watching and is not in control. In effect, therefore, lending credence to superstition can cause a person to forget the most basic tenant of the Jewish faith. Since Hashem wants good for us, He commands us to clear our minds of such nonsense and establish in our hearts that all that happens to us is from Him, according to our deeds, and omens have no power over us whatsoever, positive or negative.