Violet M. Firth (Dion Fortune) 
Psychic Self-Defense [EPUB ebook] 

One of the texts by the occultist that was Dion Fortune, still as relevant today as ever for any scholar of esotericism and practical magic. The various types of psychic attacks, their various interpretations, and especially the methods of practical defense that can be put in place are described in clear detail. This is a subject that it is essential to know and be able to put into practice, as its mastery can smooth out many of the stumbling blocks that any seeker of occult subjects encounters on his or her path. This is because not all lethal and irremediable wounds are visible and bleeding; and too often our immortal souls remain at the mercy of nefarious energies and influences of which we are totally unaware.