Udiana (also: Uḍḍiyāna, Uḍḍāyāna, Udyāna or 'Oḍḍiyāna'), a small region in early medieval India, is ascribed importance in the development and dissemination of Vajrayāna Buddhism. Tibetan Buddhist traditions view it as a Beyul (Tibetan: སྦས་ཡུལ, Wylie: sbas-yul), a legendary heavenly place inaccessible to ordinary mortals. Padmasambhava, the eighth-century Buddhist master who was instrumental in the introduction of Buddhism to Tibet, was believed to have been born in Oddiyana. The Dzogchen Siddha Garab Dorje is likewise attributed to this region.
It is ascribed importance in the development and dissemination of Vajrayāna Buddhism. The region was also an important place for the practice of Śaivite Hinduism. It is seen as the homeland of the Mahārtha (aka Krama Kalikula) lineage of Śaiva Tantra. The first Mahārtha Siddha, Jñānanetra Nātha, is said to have awakened and taught in this country. It was also called as “the paradise of the Ḍākinīs”.