Zen is a philosophical and spiritual practice rooted in Chan Buddhism, originating in China. It emphasizes the importance of mindfulness, meditation, and the cultivation of inner peace and clarity. Practitioners of Zen seek to achieve enlightenment and awakening through the direct experience of reality. The practice of Zen often involves sitting meditation (zazen), koan study, and interaction with a teacher (Roshi). Zen teachings encourage a simple and minimalist lifestyle, focusing on the present moment and letting go of attachments to ego and material possessions.