all the lights out, there was still plenty of light to see. but once all the people are gone, the light has left with them, and it is again hard to see. i know that if i lit a single candle, i could see to get around the church, but my light only goes so far. the corners would be dark, the balcony would be dark. i can bring that light into those areas, but once i leave again they will be dark.
i find that it is similar in my life. when i am working in a church, or active in a church, it is easy to think about god. 