For centuries, the use of salt in spiritual defense has been used in the world of the paranormal. Here's a bit more on it from a Christian viewpoint of the power of salt...and how to bless it.
Using Blessed Salt
From Forums of the Virgin Mary [translated]: Ways to bless salt and use it for spiritual purposes. Blessed salt has a power that Christians in general are unaware of. It is a sacramental protection that you can use
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