The heart in a dream often stands in directly for emotion and love -- how open, guarded, or full your feelings currently are. A racing or aching heart can point to intense emotion you haven't fully processed, while a calm, strong heartbeat often reflects genuine vitality and emotional steadiness.
Make Saturn and Sun significators of kings and princes, with the planet, and planets of the tenth; but their helpers take from the eleventh, and the assistants of vulgar persons from the second house. - William Lilly (1602.-1681.)