No text, but a visual code

[R. Sale]

I would say that the VMs artist knew and drew a lot of things that have long gone unrecognized. The cosmos is a prime example. In heraldry, something as basic as the recognition of a nebuly line, or as complex as heraldic canting and ecclesiastical tradition. It's not very mysterious, really not esoteric, but definitely can be obscure.

The interpretation of two VMs plants, violets and costmary, based on the 'Mary's Garden' terminology, is more esoteric perhaps, but still not hermetic.