sesshin is a Japanese term that refers to a period of intensive meditation practice in Zen Buddhism. During sesshin, practitioners engage in zazen, or seated meditation, often for several hours each day. This retreat-like experience allows individuals to deepen their meditation practice, cultivate mindfulness, and enhance their understanding of Zen teachings. Typically lasting from a few days to a week, sesshin includes structured schedules that incorporate meditation, chanting, and mindful activities. Participants often follow a strict routine, which may include meals, work periods, and rest, all aimed at fostering a focused and contemplative environment conducive to spiritual growth.