In Gurdjieff’s Cosmology, The Universe Is Represented By The Symbol Of The Enneagram. The Enneagram

Bernard Baars, In the Theater of Consciousness

Hildegard von Bingen’s 23 litterae ignotae, letters for her constructed mystical language Lingua Ignota, ca. 1200.

Emmanuel Swedenborg, the Swedish scientist and mystic, held that the soul of a man was a 'spiritual fluid' diffused throughout the body, and that the medium for its diffusion was the blood, which was thus imbued with power from the divine source. On the other hand the French occultist Eliphas Levi spoke of blood as 'the astral light made manifest in matter', the astral light in this context being the vital principle of the etheric world.

Blood was regarded by all peoples throughout history as a magic substance of tremendous psychic potency and was therefore universally hedged in by taboos. It was the sign of supreme sacrifice; it sealed covenants; it betokened both maidenly virtue and the magic power of virgins. If split on the earth blood cried aloud for vengeance...'There is scarcely any natural object with so profoundly emotional an effect as blood'.

Benjamin Walker, Beyond the Body: The Human Double and the Astral Planes

Figure of hand from Compendium rarissimum totius Artis Magicae sistematisatae per celeberrimos Artis hujus Magistros ~1775

The Calendarium Naturale Magicum Perpetuum is a late renaissance (c.1619 or 1620) grimoire and esoteric print of calendar engravings. Its full title is Magnum Grimorium sive Calendarium Naturale Magicum Perpetuum Profundissimam Rerum Secretissimarum Contemplationem Totiusque Philosophiae Cognitionem Complectens. It measures more than four feet long and about two feet wide, and includes an early example of a Pentagrammaton.

The “author” in the 1619/1620 Frankfurt print is given as Johann Baptist Grossschedel von Aicha, and attributes some of the engravings to Tycho Brahe. The original engraver is given as Theodor de Bry, as first published in 1582. This work predated, and influenced, the Rosicrucian furor.