mysterious background: sacred geometry, circles, triangles, stars.

abstract alchemy ancient astrology astronomy background beige book brown calendar card cartoon celestial circles color comet decorative design divine drawing element esoteric for geometry graphic heavenly illustration imitation ink line magic manuscript map medieval mysterious mystic mysticism nature occultism old paganism paper parchment pattern place poster print religion retro sacred scheme science shirt sign sketch sky space stars sun symbol tattoo template text texture triangles universe vector vintage