A Kundli, also known as a birth chart or natal chart, is a key concept in Vedic astrology. It is a graphical representation of the positions of celestial bodies at the time of a person's birth. The Kundli is used to analyze an individual's personality, strengths, weaknesses, and potential life events based on astrological principles. The Kundli consists of twelve houses, each representing different aspects of life, such as career, relationships, and health. Astrologers interpret the placements of planets within these houses to provide insights and predictions about a person's future and life path.