Young: “I can’t see how I could possibly be wrong, therefore I must be right.”
Old: “I can’t see how I could possibly be wrong, therefore I must be ignorant.”
Nobody feels their shortcomings more than a moral person. Likewise, or identically: When we become sensitized to the divine ground, we feel more acutely that remaining shimmering veils of nihilitude who shelters and sustains our finite being.
Thus “the lonely man of faith”. The thinner the separation the more keenly it is felt.