Kalacakra in a Yi-dam(god protector) who turns the wheel of life. Kalacakra is the title of a work in one of the divisions of the Kangyur.
It is possible that Kalacakra is a personification of that work. Kalacakra is usually as a Yidam with four head on each of which is the third eye.
He may have twelve or twenty-four arms but never has more than two legs. In his Yi-dam form, he is dark blue. .
Origin of the Karma Kagyu lineage
The Kagyu school, also transliterated as Kagyü, or Kagyud, which translates to "Oral Lineage" or "Whispered Transmission" school, is one of the main schools of Himalayan or Tibetan Buddhism.
The Kagyu lineages trace themselves back to the 11th century Indian Mahasiddhas Naropa, Maitripa and the yogini Niguma, via their student Marpa Lotsawa (1012–1097), who brought their teachings to Tibet.
The Karma Kagyu was founded by Düsum Khyenpa, 1st Karmapa Lama. It .
Rinpoche, also spelled Rimboche and Rinboku, is an honorific term used in the Tibetan language.
It literally means "precious one", and may refer to a person, place, or thing—like the words "gem" or "jewel".
The word consists of rin (value), po (nominalizing suffix) and chen (big).
The word is used in the context of Tibetan Buddhism as a way of showing respect when addressing those recognized as reincarnated, older, respected, notable, learned and/or an accomplished Lamas .