Himself Who is perceived and tasted therein. And, although He cannot be experienced manifestly and clearly, as in glory, this touch of knowledge and delight is nevertheless so sublime and profound that it penetrates the substance of the soul, and the devil cannot meddle with it or produce any manifestation like to it, for there is no such thing, neither is there aught that compares with it, neither can he infuse pleasure or delight that is like to it; for such kinds of knowledge savour of the Divine Essence and of eternal life, and the devil cannot counterfeit a thing so lofty.  –St John of the Cross ‘Ascent of Mount Carmel’

St John of the Cross Adoring