I do not think reading the mystics would hurt you myself: you say you must avoid books which deal with 'feelings' - but the mystics don't deal with feelings but with love which is a very different thing. You have too many 'feelings,' but not nearly enough love.
Evelyn UnderhillThe mystic cannot wholly do without symbol and image, inadequate to his vision though they must always be: for his experience must be expressed if it is to be communicated, and its actuality is inexpressible except in some hint or parallel which will stimulate the dormant intuition of the reader.
Evelyn Underhill