Navamsa is a significant concept in Vedic astrology, representing the ninth division of a zodiac sign. Each zodiac sign is divided into nine equal parts, and the Navamsa chart is used to gain deeper insights into a person's life, particularly regarding marriage, relationships, and spiritual growth. The Navamsa chart is often analyzed alongside the main birth chart, or Rashi chart, to provide a more comprehensive understanding of an individual's astrological influences. It helps astrologers interpret the strengths and weaknesses of planets, offering guidance on how to navigate various life challenges.