Etymologically, the word navāṁśa is composed of two words nava meaning nine and aṁśa meaning part of division. The period of two consecutive conjunctions of the Moon with the Sun is about 30 days (rounded off) and the longitude traversed by the Sun is the overlord of the signs. Since the Sun is the kāraka of the ninth house of father, the one-ninth division of a sign called navāṁśa (spans 3°20’) has a profound say on one’s fortune and dharma (religion, life path) which stems from the feet of one’s father. Similarly, the nakṣatra having a span of 13°20’ have the Moon as their over-lord and show the Mother and the mind. Since Moon is the kāraka of the fourth house, it has a strong say on the consciousness and sukha (joys) and health which is the unsullied affection of one’s mother. When the nakṣatra span of 13°20’ is divided by 4 (house number) we obtain the navāṁśa span of 3°20’. Thus, the navāṁśa is the common ground for the coming together of the Sun and Moon, of Śiva and Śaktī, of Father and Mother…