Advanced Buddhist Teachings with Zen Master Thich Nhat Hanh The teachings of Buddhism describe two realities: the ?historical dimension? of time, space, and form; and the ?ultimate dimension,? an infinite realm beyond birth and death?the realm of complete freedom, peace, and joy?the ground of being called ?nirvana.? On The Ultimate Dimension, you are invited to sit beside Zen master Thich Nhat Hanh for an advanced dharma retreat that opens the doorway to this sublime experience of being. With him, you will plant the seeds for a daily practice to transform the way you relate to life?s difficulties, and begin to unfold your natural state of happiness and wisdom?your Buddha nature.