Kālacakra

Kālacakra" is one of many tantric teachings and esoteric practices in Tibetan Buddhism. It is an active Vajrayana tradition, and has been offered to large public audiences. The tradition combines myth and history, whereby actual historical events become an allegory for the spiritual drama within a person, drawing symbolic or allegorical lessons for inner transformation towards realizing buddha-nature. The most important texts of this tradition include Kalachakra Tantra and Vimalaprabha. The tradition's roots are in India, but its most active history and presence has been in the monasteries of Tibet. The tradition is a form of nondualism, and it is believed that the Kalachakra was taught by Gautama Buddha himself.