The Vimana Sthana of the Charaka Samhita as a Knowledge and Measurement Unit

The Indian system of medicine is known for its classical literature, mainly the major triad of the Charaka Samhita, Sushruta Samhita and the Ashtanga Hridayam. These classical texts were created by the seers of yore who had a profound knowledge free of any shortcomings. These ancient literary gems were based on the strong foundation of Indian Philosophy, mainly the theistic ones. Out of the three major classics, the Charaka Samhita is well known for its deliberations on the speciality of medicine. The main postulates of the Charaka Samhita aim at the maintenance of health of the healthy and the treatment of the diseased. The Charaka Samhita has a total of 120 chapters divided into 8 sections known as Sthana. The first and foremost is the Sutra Sthana, i.e. the section dealing with the fundamentals of the Indian system of medicine known as Ayurveda. All the basic principles of the Ayurveda system related to the health are mentioned in this section. These principles find their application elsewhere in the other seven sections of the text. One of the most important of all the sections of the Charaka Samhita is the Vimana Sthana, i.e. the section dealing with measurement/standardization. It is hereby referred to as the Section of Examinations or the Pariksha Sthana. The Vimana Sthana has a total of 8 chapters which ponder over a wide range of subjects like the special effects of drugs, epidemiology, pathology, dietetics, ways of gaining knowledge and the teaching methodology. The discussion in the Vimana Sthana centers on the different types of examination of the patient, mainly the ten-fold examination of the natural constitution (prakriti), vikriti (pathology) et al. Along with these examinations, there is a vivid description of the teaching methodology in the Ayurveda system of medicine with an emphasis on the friendly discussions. The fundamentals of research like the drug research and the five-fold research protocol are also conspicuous by their presence and find