Sivaganga, Agastya visualized the real form of Lord Siva. Lord Siva once cursed Parvati
Devi for closing his eyes out of jest and throwing the entire universe into complete
darkness, which caused untold sufferings to the people. As a result of the curse, she had
to spend her time on the
earth in the form of Kali, worshipping Siva.
At that time, there was a demon by name
Chandasuran who was harassing all the devas including Vishnu, Brahma and Indra. All of
them approached Lord Siva, to seek
redress and, according to his advice, they approached Kali.