Samudrik Shastra is an ancient Indian science that deals with the study of human physiognomy, which involves analyzing a person's physical characteristics, such as their facial features, body structure, and other physical attributes, to gain insights into their personality, behavior, and destiny. The term "Samudrik Shastra" is derived from the Sanskrit words "Samudra," meaning ocean, and "Shastra," meaning science or scripture. This ancient science is also known as "Gujarati Samudrik Shastra" in the Gujarati language.