Daimon
The ancient Greeks believed in the existance of daimons or daemons, intermediary
spirits between humanity and the gods. Daimons could be either good or evil.
A good daimon protected and gave good advice. Evil daimons led one astray
with bad advice.
The Christian church considered all such pagan spirits as evil
demons, servants of the Devil.
However the concept of a protective spirit has survived in the form of
a "guardian spirit" believed by some to be attached to all persons
at the moment of birth.