신월, or "New Moon," refers to the lunar phase when the moon is not visible from Earth. This occurs when the moon is positioned between the Earth and the sun, causing the illuminated side to face away from us. The new moon marks the beginning of a new lunar cycle and is significant in various cultures and calendars. In many traditions, including 한국 (Korea) and 중국 (China), the new moon is associated with new beginnings and is often a time for reflection and setting intentions. It is also important in agriculture, as some farmers plan their planting schedules around lunar phases, believing it affects crop growth.