Specific plants are identified for their "kaya kalpam ability." The neem tree ( Azadirachta indica ), for instance, is referred to as "Kaya Kalpam" in Siddha and Ayurveda because of its immense curative abilities and richness in secondary metabolites like terpenoids.
Unlike modern medicine, which often treats the body as a machine with replaceable parts, Kaya Kalpam treats the human organism as an energy ecosystem. The practice operates on three simultaneous levels: kaya kalpam
The system is used not just for curing illnesses but for preventing chronic and hereditary diseases. Specific plants are identified for their "kaya kalpam