I told my grandmother that I could not see very well; she handed me her glasses. Only, when one believes in the reality of a thing, making it visible by artificial means is not quite the same as feeling that it is close at hand. I thought now that it was no longer Berma at whom I was looking, but her image in a magnifying glass. I put the glasses down, but then possibly the image that my eye received of her, diminished by distance, was no more exact; which of the two Bermas was the real?