The central teachings of the Gelug School are the Stages of the Path ("lamrim"), based on the teachings of the Indian master Atiśa (c. 11th century) and the systematic cultivation of the view of emptiness. This is combined with the yogas of highest yoga tantra deities such as Guhyasamāja, Cakrasaṃvara, Yamāntaka and Kālacakra, where the key focus is the direct experience of the union of bliss and emptiness.