Chidambara Rahasyam denotes secret knowledge or awareness that is beyond the grasp of an ordinary man. Nataraja temple at Chidambaram in Tamil Nadu (TN) is ancient and significant for holding such knowledge. Nataraja is the dancing pose of Lord Siva, where each part is significant. These have been described in ancient South Indian scriptures. Recently, scientists in the West have discovered that 'Thadavam' or dance by Nataraja is the cosmic dance of microcosmic materials. They have linked Thandavam to the birth and death of the Universe. Also, they have concluded that the left toe of Nataraja at Chidambaram is pointing to the magnetic centre of the Universe.