Kalachakra (Kālacakra), a term rich in meaning within both Vajrayana Buddhism and Hinduism, translates to "wheel of time" or "time cycles." This concept is central not only as a philosophical and spiritual symbol but also names a collection of Buddhist teachings and a significant lineage within both Indian and Tibetan Buddhism. Classified within the highest class of tantra, anuttara-yoga, Kalachakra spans a broad spectrum of spiritual and temporal teachings.

The Kitab al-Bulhan, or "Book of Wonders," is a compendium of medieval Islamic esoteric knowledge compiled in the late 14th or early 15th century. This manuscript is a remarkable window into the confluence of astrology, astronomy, geomancy, and folklore within the Islamic scholarly tradition.

The overall or meta-effect of colors on consciousness supports the usage of colors in the Western Hermetic Tradition and can even be a metaphor for Eastern branches of philosophy.