48. When these things and others like them are received by a man whose understanding has been closed up by his religion, may not the temple in which he performs his worship be compared to a den or cavern underground, where he does not know what the objects are of which he catches sight? And may not his religion be compared to dwelling in a house that has no windows? and the voice of his worship to sound, and not to speech? With such a man an angel of heaven can hold no converse, because the one does not understand the language of the other.