Rasashastra is a branch of Ayurveda that focuses on the study and application of medicinal metals, minerals, and herbs. It aims to enhance health and longevity through the preparation of various alchemical substances. Practitioners believe that these substances can purify the body and treat various ailments. The techniques in Rasashastra involve complex processes like purification, incineration, and combination of materials. This ancient practice is rooted in Indian tradition and emphasizes the importance of balance in the body. It is often used alongside other Ayurvedic treatments to promote overall well-being.