Padmasambhava met the Second Doctor when he visited the monastery in 1630. While travelling on the astral plane, he encountered the Great Intelligence, which took control of him as part of its plan to gain corporeal existence on Earth. He used his rank in the monastery to have tasks completed for the Intelligence. He hypnotised Songsten and Victoria Waterfield. When he was able to speak with his own voice, he tried to keep the monks safe and wanted them to flee the monastery.