Luna is the Roman moon - the body in the sky and the goddess of it, one of the oldest Roman deities and counted by Varro among the select gods. Her temple stood on the Aventine, and her month and her phases shaped the calendar: the Kalends was originally the new moon and the Ides the full. Later Roman writers gave her the chariot, the horns and the Greek name Selene, and the poets' Luna is largely the Greek moon-goddess in Latin dress.
Modern Practice
Luna is called on at the new moon to begin and at the full to complete, for the calendar of a working, and for the night side of a life. Her practice is timing: to know the phase before the act.