The issue for faith is not whether we have had an experience like Moses with the burning bush or St. Paul on the Damascus road. The issue is whether we can be open to interpreting the experiences we have in ordinary life as so deeply meaningful that we are willing to claim them as religious.
Is it possible to find such an experience in the cup of coffee with a friend? Is it possible to find in the worship service you attend on a regular basis? Can something in the beauty of nature catch you up, or music, or the arresting vision that takes form in the stone Michelangelo chiseled?
Finding the extraordinary in the ordinary is the ego-dissolving experience upon which spiritual growth and development rests.