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.
Back to the microvilli. The microvilli contains capillaries which absorb fatty acids and glycerols. These are transported to the liver via the heptic portal vein. In humans absorption takes place in the small intestines. In the small intestines are tiny structures called villi. Each villi has microvilli. These villi increase the surface area for absorption. Inside a microvilli, there is a network of capillaries and lacteals.