If you seek immunity from the sway of the forces of the contingent world, hang the 'Most Great Name' in your dwelling, wear the ring of the 'Most Great Name' on your finger, place the picture of 'Abdu'l-Bahá in your home and always recite the prayers that I have written. Then you will behold the marvellous effect they produce. Those so-called forces will prove but illusions and will be wiped out and exterminated. Recognize that evil is negative and has no existence in its own right.

(Compilations, Lights of Guidance, p. 520)