Names generate meaning in a short amount of space — they provoke thoughts, questions. That's something I like doing. Of course, you have to be careful. Sometimes it can alienate the reader, it can be another level of mediation, to make a character carry the great burden of a metaphoric name. The character can be a device before he or she becomes a person, and that can be a bad thing for a writer who wants to offer up a kind of emotional proximity in the work. It's a constant struggle, the desire to be playful and the desire to communicate on some very stark emotional level.
