Zhitro
In Tibetan Buddhism and Bön, Zhitro or Shitro zab-chos zhi khro dgongs pa rang grol, also known as kar-gling zhi-khro refers to a cycle of teachings revealed by the terton Karma Lingpa and traditionally believed to have been written by Padmasambhava. The practices involve a mandala of 100 peaceful (zhi) and wrathful (khro) tantric deities and associated teachings and tantric practices which focus on those deities which represent the purified elements of the body and mind. These hundred peaceful and wrathful deities are believed to manifest to a deceased person following the dissolution of the body and consciousness whilst they are in the intermediate state, or bardo, between death and rebirth. The Bardo Thodol, commonly known in the West as "The Tibetan Book of the Dead", forms one section of Karma Lingpa's Zhitro cycle. The Zhitro teachings are closely related to the Guhyagarbha Tantra and are considered an Inner Tantra. 
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