A "tulku" is a term in Tibetan Buddhism that refers to a person who is recognized as the reincarnation of a previous spiritual teacher or leader. Tulkus are believed to possess the same spiritual qualities and wisdom as their predecessors, allowing them to continue their teachings and guide others on the path to enlightenment. The process of identifying a tulku often involves specific rituals and tests, where monks or spiritual leaders look for signs that indicate the child's connection to the previous incarnation. Famous examples of tulkus include the Dalai Lama and the Karmapa, both of whom play significant roles in Tibetan Buddhism.