Every time you feel lost, alienated, cut off from life, or from the world, every time you feel despair, anger, or instability, you have to know how to practice going home. Mindful breathing is the vehicle that you use to go back to your true home where you meet the Buddha, the Dharma, and the Sangha. Mindful breathing brings you home—it generates the energy of mindfulness in you. Mindfulness is the substance of a Buddha.