The blessings of Maa Baglamukhi produce a divine protective defend in the shape of the aura around somebody thus preserving him/her from malefic energies in the form of black magic spells or evil eye. A different etymology indicates that valga implies "to paralyze" and symbolizes the strength of stambhana, "paralysis" https://shabar-vashikaran-mantra59371.thenerdsblog.com/41784202/baglamukhi-an-overview