It is said that Palmistry has migrated from India to other countries like Greece, Egypt, Persia and Syria in ancient times. Samudra, deity of the Seas has first given this knowledge to the world, hence this is called Samudrika. Sages like Narada, Valmiki, Garga, Bhrigu, Prahlada and Astrologers like Varahamihira have done a lot of work in Palmistry. Palmistry was discussed in the great books like Bhavishya Puranam and Hasta Sanjeevani. But some how Palmistry could not receive proper attention in India in modern times. It is given high regard in Western countries.
The pads below the fingers are the places where a number of nerves are bundled up. These pads are like capacitors to store the life force. The life force also carries the energies coming from the planets in the sky. And hence, the pads are named after the planets.