Kantha is stated to be the passage for the physiological flow of the Prana and Udana vayu among the 5 types of Vata dosha<ref>Ashtanga Hrudayam (Sutrasthanam Adhyaya 12 SUtra 5)</ref> | Kantha is stated to be the passage for the physiological flow of the Prana and Udana vayu among the 5 types of Vata dosha<ref>Ashtanga Hrudayam (Sutrasthanam Adhyaya 12 SUtra 5)</ref> |