Chogyam Trungpa Rinpoche was one of the main figures in the transmission of Buddhism to the West, especially to North America. As we know, Buddhism began in India, and from there it spread through many different nations and adapted itself to many cultures. The transplantation of the Buddhist teachings across many cultures and times is proof that, as long as human beings exist, fundamentally the nature of people's minds does not change. The fundamental issues that we have to deal with as human beings remain the same, as long as people live on this earth. Therefore, the teachings that Trungpa Rinpoche gave will always be applicable, even many years after his death. Therefore, it is of great importance to gather together and publish his teachings.