These days we hear about people with Powers of extra sensory preceptions. The Rishis were holy sages, who occupied themselves in concentrating on the one divine being - paramatma. They far exceeded the power of ESP people. More than that they were able to know the future by their fore-sight. With this foresight, the Rishis like Agasthiya, Kousika, Vasishta have given predictions for the human being occupying this world. Let us take for instance any particular moment of the Day.
Many lives are born in this world at that given moment, human lives, plant life and animals. The Rishis have ignored the last two and confined their predictions only to human beings. And that too not for all the humans. Predictions are given only for such of those presons who the Rishis out of their foreknowledge knew will come forward to study these Predictions.
The exact age in which each such person will come for this study have also been foretold by Rishis. These predictions were inscribed on palmleaves. Like many other arts and sciences of ancient days they were also in Sanskrit. Later days, the Tamil kings gathered all such palm leaves irrespective of the subjects, they dealt upon and stored them in big libraries.
These leaves which are the repository of the Wisdom of ancient Rishis woud otherwise have been lost to us. The king of Tanjore, a true patron of Arts and Sciences, found a reserve for these plam leaves in his palace library.
He also got them translated in to ancient Tamil with the help of Pandits. The palm leaves kept by us are those which we got from our ancestors. We have not professed at any time that these are the original palm leaves Purported to be written by the rishis and obtained by us in the days of British rule in the auction. Before revealing the predictions, each person is first identified by furnishing his date of birth details, planetary positions as at the time of his / her birth, parentage, names of some close relatives, position in life. marital status etc. After this, the predictions for the individual follow from the date of his studying the Nadi to his last day. The past, i.e. the happenings from date of birth to date of studying the leaf is not covered. This is probably in order to avoid any complications arising in human lives.