Hot answers tagged segulah
See Chochmas Adam (89:3) who writes that if the action is medically sound or is sugulah based it is not subject to the prohibition of nichush or darchei Emori. Using words of Torah and objects of Kedusah like tefillin for healing is neither medically sound nor a traditional or effective remedy and is therefore prohibited. All segulos must be examined ...
The Mishna Berura (301 sk 158) quotes an argument among Rishonim and Achronim about whether a woman who finds Tefillin in public on Shabbat may wear them as amulets to "carry" them back to a safe place. The debate centers around defining normal modes of wearing clothing. He doesn't cite anyone who suggests that the Rama's exhortation (OC 38:3) of "מוחין ...
Harav Musafi quotes his father, Harav Salman Musafi and Harav Shelomo Zalman Aurbuch who prohibit. Source
From Chabad.com Now consider: The blood of the Passover sacrifice was but of little weight, for it was required but once, not for all generations, and by night only, not by day; yet He would ‘not allow the destroyer... to strike you.’ How much more will He not permit the destroyer into the house which bears a mezuzah, which is of greater weight, seeing ...
The Ben Ish Chai Shanah Beis parshas Pinchas 13 cites from the gemara in Berachos 20a what pesukim to say to save oneself from ayin harah. He then lists other pesukim as well. See there for the lists of pesukim. Lastly, he cites the custom cites earlier by the Chidah to say Chamsah and make a palm shaped wood piece with the letter of Hashem.
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