Buddha nature is the basis of our spiritual practice, and the basis on which we are trying to uplift and improve ourselves. Buddha nature is the pure part of ourselves that continues on after death. In this lesson, Rimpoche explores reincarnation and its relationship to Buddha nature. There are two Buddha natures: static Buddha nature, and Buddha nature that is able to grow. When we engage in learning, analyzing and meditating, our static Buddha nature becomes a growing Buddha nature. Our growing Buddha nature eventually clears all delusions and becomes awakened mind.