The second guna is rajas, that is the stage when man starts the active process of self-development, transcends dumb primitiveness, grows as a warrior, and then as a leader, organizer of other people. The third guna is sattva, that is purity, harmony, bliss, happiness.
Villi also help the food to move along the digestive tract. Food takes three to six hours to move through the small intestine. The small intestine has three parts, the duodenum, jejunum and ileum.
Villi in the small intestine absorbs nutrients and completes the breakdown of food. Factors of its structure that help it function include . Large surface area (provides more surface area for exchange to take place) Thin wall (reduces the distance that materials need to move) Moist (assists the transport of materials across the exchange surface)