Legend has it that Vishnu desirous of progeny worshipped Shiva at Tiruvarur and that Shiva blessed him with a male child Kaama. Parvati (Shakti) who was enraged by the fact that Vishnu had not included her in his worship of Shiva inflicted a curse upon him that his child would be burnt to death by Shiva. (see Kumarasambhava legend). http://www.indiantemples.com/Tamilnadu/Tiruvarur/somaskanda.html Sati, the consort of Shiva immolated herself at the site of the Daksha Yagna, which was later destroyed by Shiva. http://www.indiantemples.com/beliefs/kumarasamb.htm