Banyan-tree (Ficus benghalensis) has well-documented Ayurvedic properties - bark, prop-roots, and latex used medicinally (diabetes, ulcer-healing, immune support). The long-lived banyan is a natural symbol of longevity and continuity. Collective circumambulation by married women = a community wellness + social bonding ritual. (Note: the popular claim that banyans release oxygen at night is a misconception - all non-CAM plants consume oxygen at night.)