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.
Each villus has its own set of circulatory vessels. Capillaries move blood the entire length of the villus. When the villi absorb nutrients like water soluble vitamins, amino acids and sugars, they are transported into the capillaries for distribution and use throughout the body. The villi also contain vessels called lacteals. Lacteals are part of the lymphatic system. Any fats, fat soluble vitamins and excess liquids absorbed by the villi are first moved into the lymph fluid circulation before being emptied into the blood stream. The villus structures are also involved in digestion.