Sentence:  "‘Have you ever contemplated, Adrian, the phenomenon of <WSD>springs</WSD>?'''/ "‘Coils, you mean?'''/ "‘Not coils, Adrian, no. Coils not. Think springs of water. Think wells and spas and sources. Well-<WSD>springs</WSD> in the widest and loveliest sense. Jerusalem, for instance, is a <WSD>spring</WSD> of religiosity. One small town in the desert, but the source of the world's three most powerful faiths... Religion seems to bubble from its sands.''' 
Meaning of the word marked with <WSD> tags:  The source from which an action or supply of something springs.