The spiritual leader of the Tibetan form of Buddhism, known as Gelug, the term Dalai Lama is an honorific title. In Tibetan, Dalai means oceanic or expansive, and Lama means master or guru. The Tibetan way of writing Dalai Lama is ཏཱ་ལའི་བླ་མ་. In the seventeenth and early eighteenth centuries, the Dalai Lamas who were spiritual leaders also headed the Tibetan government as regents. Various degrees of Chinese control, notably under the Qing dynasty, have been established over Tibet since then. The Dalai Lama continues to advocate for Tibetan people and Buddhists more generally since the People's Republic of China took over Tibet in 1951. However, he wields no direct political power. In terms of his spirituality, the Dalai Lama teaches Lamrim, the stages towards Enlightenment, and Sunyata, a word that relates to meditation, meaning openness or emptiness.