A ring in a dream usually points to commitment -- to a person, a promise, or a sense of wholeness you're working toward. Losing a ring can reflect anxiety about a bond weakening, while receiving one often names a readiness to deepen a connection you've been circling around.
Make the Sun, or any of the superiors to signify princes and great persons. Scribes and rusticks, [are shown by] the inferior planets, and chiefly the Moon. - William Lilly (1602.-1681.)