Our ancient siddha’s had left a lots of surprising things to us. Now a days we are using paper made books which will be destroyed within few years.
But in Ancient periods, Siddha’s used palm leafs(OLAI SUVADI) which is there till now without any problem.
The 18 siddhas like Shri Agasthiyar, Shri Pathanjali, Kamala Muni, Thirumoolar, Kuthambai, Korakkar, Dhanvantri, Sundranandar, Konganar, Sattamuni, Valmiki, Ramdevar, Nandishwarar, Edaikadar, Machamuni, Karuvoorar, Bhogar, Pambaati, who lived with peoples in ancient periods, had 8 powers like Anima, Mahima, Lahima, Karima, Prapthy, Pragashiyam, Eshathuvam, and Vashithuvam.
Using these powers they were able to know about future by their spiritual knowledge (Gyan) which they had written in the palm leaf which will be useful to peoples.
They had enormous knowledge in medicine, scientific & Geographical changes, luck, spirituality etc. By these Techniques, they had ageless life or life longevity.