Thillai Natarajah Temple, Chidambaram is considered as one of the most ancient and most celebrated of Shiva temples in India. Saivites attach great religious as well as historic and cultural significance with this temple. In this temple Lord Shiva is an embodiment of the infinite space. Chidambaram temple is associated with Lord Nataraja, or Shiva in his Ananda Tandava pose (the Cosmic Dance of bliss) in the cosmic golden hall (Ponnambalam) and the hall of consciousness (Chit Sabha). Lord Shiva is also worshipped in this temple as formless form and this fact is being understood as Chidambara Rahasyam. This temple is known for its Akasa Lingam, an embodiment of Shiva as the formless Space.The Hindu monk Adi Sankara is said to have presented a Sphatika Lingam which is still under worship in this temple. This Sphatika Lingam, instituted at Chitsabha, is being represented as Lord Chandramauleeswara (A form of Lord Shiva). Also in the Chitsabha are images of Ratnasabhapati (Nataraja of Ruby), Swarnakarshana Bhairavar, Mukhalingam etc.