Harper began as an English occupational surname for someone who played the harp, and it carries that craftsman's association into its use as a first name -- skill built through practice, not luck. The name is often linked with resourcefulness and a hands-on kind of creativity rather than passive artistry.
If the ascendant sign is not from the same nature of the request or the requester, the invocation would be meaningless and; the requester bewares! - Picatrix (Andalusia, ~1000.AD)