Buddha Dhatu or Buddha Nature is a doctrine important for many schools of the Mahayana Buddhism. It is considered to be a real eternal principle, essential for every being to get enlightened and achieve nirvana. The Buddha Dhatu is uncreated, incorruptible, and indestructible, and thereby, has to be created within oneself. The Buddha Dhatu is exempted of what is contingent, painful and impermanent. In the Nirvana Sutra, the Buddha has called it the 'True Self' which is to distinguish from the false worldly self of the five Skandhas.This Tathagatagarbha or the Buddha Dhatu, inherent in all beings, can never be destroyed or harmed, and yet is concealed from view by a mass of obscuring mental and moral taints within the mind-stream of an individual. Once the Buddha-Dhatu is finally seen and known by a faithful Buddhist practitioner, it has the power to transform that seer into a Buddha. The doctrine of the Tathagatagarbha or the Buddha-Dhatu has been therefore, stated by the Buddha of the Mahaparinirvana Sutra to be the 'absolutely final culmination' of his Dharma.