add, is it for every occasion, or every audience; neither are all its aspects open to inquiry. It must be reserved for certain occasions, for certain audiences, and certain limits must be observed. It is not for all people, but only for those who have been tested and have found a sound footing in study, and, more importantly, have undergone, or at the very least are undergoing, purification of body and soul. For one who is not pure to lay hold of pure things is dangerous, just as it is for weak eyes