The forms a Ring of Fire around the reciter. Shaytan cannot approach. Evil magicians lose their sight when they try to target a reciter. This is why it is considered "better" than household ruqyah .
“Yâ Vâhidül bâki evvelü külli şey'in ve âhirüh” erbaini idrisiyye 41 ismi serifi ve havasi better
To recite the 41 Ismi Serifi, follow these steps: The forms a Ring of Fire around the reciter