The most ancient language known as Tamil is spoken by many people all over the world and is still evolving, not only in the southern state of Tamil Nadu in India. Numerous sages, Siddhas, and Maharishis have written Nadi astrology in Tamil on palm leaves called Olaichuvadi in Tamli Nadu, India, which is where Tamil originated. Nadi Soothsaying leaves are kept in the town called Vaitheeswaran Koil in Tamil Nadu, India. Vaitheeswaran Koil has a long history of being associated with Nadi astrology and is well-known for his Nadi Jothidam in Tamil. In Tamil Nadu, where most people speak Tamil, Nadi Astrology is also known as Nadi Jothidam. In Tamil, these Nadi Astrology Palm leaves provide predictions for a person's entire life. Predictions for Nadi Jothidam were written in the ancient Tamil language on Palm Leaves. Enlightened saints' wisdom, reason, and insight for humanity's benefit have written down this ancient science on palm leaves. Nadi Astrology is an art that successfully combines spiritualism and science to predict people's future. While Nadi Astrology is based on predictions made by Rishis using their spiritual power, Natal astrology is based on calculations made by men. Most of the time, ordinary people's mathematical predictions, given their limited knowledge, may fail. This occurs because no one records the correct birth date, which could result in failure in the majority of cases. This occurs because no one keeps track of an infant's correct birth time—the time at which the infant's head emerges from its mother's womb).