Richard Rohr had a recent interview with NPR. In it, he speaks of his experience of ageing as being comfortable with ambiguity. The interview concludes:-
People who have really met the Holy are always humble. It's the people who don't know who usually pretend that they do. People who've had any genuine spiritual experience always know they don't know. They are utterly humbled before mystery. They are in awe before the abyss of it all, in wonder at eternity and depth, and a Love, which is incomprehensible to the mind. It is a litmus test for authentic God experience, and is -- quite sadly -- absent from much of our religious conversation today. My belief and comfort is in the depths of Mystery, which should be the very task of religion.