It is one of the many scriptures which reveal the future of an individual or nature of a person. It includes the study of aura reading, face reading and complete body analysis. There are five main types of human elements in terms of the Samudrika: Agni, Vayu, Jal, Akash and Prithvi. Vedic scriptures believe that all the body parts of a person reveal his behavior, personality, attitude etc. Often used in Vedic astrology, as it is related to astrology and palmistry (Hast-samudrika), as well as phrenology (kapal-samudrik) and face reading (physiognomy, mukh-samudrik). It is also one of the themes incorporated into the ancient Hindu text, the Garuda Purana.