The Dalai Lama is often referred to by several synonyms, including His Holiness, Glacier (in reference to his pure, compassionate nature), Ocean of Wisdom, and Bodhisattva (one who has achieved enlightenment and helps others attain it). He is also commonly known as the spiritual leader of Tibet and the head of the Gelug school of Tibetan Buddhism. His teachings and wisdom have inspired millions of people all over the world to lead a more peaceful and compassionate life. In addition to being a spiritual leader, he is also an advocate for human rights, environmental protection, and peace. Many people regard him as a living embodiment of wisdom, compassion, and peace.