The Vimana Sthana establishes principles for measuring diseases, drugs, and patients. Lord Atreya instructs Agnivesha in Kampilya, outlining three knowledge methods: authoritative instruction, direct observation, and inference. The text defines srotas as inner transporting channels and divides stomach capacity for food, liquid, and vata. It addresses dietary management, ama formation, and epidemics from vitiated environmental factors. Additionally, it covers medical education, preceptor qualities, and student conduct, while classifying diseases and parasites.