Haven't you heard? The warnings come after the spell. The third eye once opened cannot be closed. Its opening reveals infinities that drown and truths that strip the soul bare. Brought face to face with one's true self, the "self" trembles at the edge of its own dissolution.
Knowledge illuminates but it also scorches. To awaken is to risk being devoured by the infinite. To ascend is to risk being consumed whole by the raging brilliance of God. Some truths are best kept from mortal minds but if you dare, step into the light and see... the beauty and the terror.