In the comments to an earlier post regarding the Silver Segulah Ring, someone referred approvingly to a discussion of segulos which claims that the rationalist approach to segulos is normative in Judaism and was the view of Rashba:
Hyper-Rationalism and Segulos
Hyper-Rationalism and Segulos
Hyper-Rationalism and Segulos
In the comments to an earlier post regarding the Silver Segulah Ring, someone referred approvingly to a discussion of segulos which claims that the rationalist approach to segulos is normative in Judaism and was the view of Rashba: