The rock, says Guillim in his “Display of Heraldry” signifies “safety, refuge and protection” and we can clearly understand why. A Display of Heraldry, J. Guillim, Blome, London, 1679, P225 It occurs more often in Scottish arms than in English (that nation having a much rockier landscape) and is almost always drawn in natural colours. A Glossary of Terms used in British Heraldry, J.H. Parker, Oxford, 1894, Entry:Rock