Tenth Karmapa Chöying Dorje was living when difficult times hit Tibet. Regent of 5th Lobsang Gyatso, the future Dalai-lama, requested the aid of Güshi Khan, Mongolian Emperor to invade Tibet, to turn over the power to Gelug school and enthrone Lobsang Gyatso as a ruler of Tibet, Dali-lama. Tenth Karmapa had to spend most of his time in exile, however he had many good students,