Faith is the substance of things unseen. (Rom. 10:17). By faith, we hold as true those things that can in no way be visualized. But one cannot see all things that can be visualized in the same light. This is a statement that was firmly held by philosophers and theologians and subscribed to by popular culture long before the invisible parts of the electromagnetic spectrum were known. A difference was recognized between those things that can be seen by the light of the sun or the flame of a candle and those things that can show themselves on rare occasions without losing their status as members of a class of invisible beings. Some such visions may be everyday occurrences. Others are exceptions- some dreaded, some desired.
