The Heptameron, attributed to Peter de Abano, is a profound grimoire that instructs practitioners on the invocation of planetary angels, each assigned to a specific day of the week. This tradition offers a structured method to commune with celestial entities that influence the very fabric of our daily lives. Each day of the week is ruled by a principal angel, who brings unique energies and teachings.
On Sunday, invoke the archangel Michael, whose energies instill protection and guidance, best complemented by solar incense such as frankincense. The ritual circle for Sunday is to be adorned in gold or yellow, colors that reflect the sun's brilliance.
Monday is under the governance of Gabriel, an angel of messages and clarity. Work with him using white or silver colors and burn jasmine incense to aid in spiritual insight. His domain is one of intuition and dreams, strengthening your inner vision.
Tuesday belongs to Samael, or Camael, both names that denote strength and courage, situated within Mars' fiery energies. Red becomes the color of power, while dragon's blood incense stokes the fires of determination.
Raphael, on Wednesday, offers healing and intellect. Blue or green vestments and sandalwood incense create an atmosphere conducive to learning and recovery, opening pathways to knowledge and wellness.
Sachiel, prince of Thursday, is acclaimed for his generosity and expansion. Align your rituals with royal blue or violet colors and the richness of cedar incense to draw prosperity and wisdom.
Anael rules over Friday, a day of love and beauty. Under Venus, employ green or pink shades and the essence of rose incense to cultivate harmony and affection in your relationships.
Finally, Saturday is cherished by Cassiel, whose serene influence reflects the solemn and wise nature of Saturn. Black or dark blue visuals and myrrh incense favor introspection and long-term planning.
Such mindful engagement with the planetary angels can enrich your practice, offering balance and enlightenment through cosmic harmony. For those ready to deepen this practice, I recommend exploring Mastering the Heptameron: Planetary Angels and Ceremonial Magic, which provides advanced insights into these ancient celestial connections.