Parasurama had killed Kshthriyas 21 times and reclaimed the land from the sea for the Brahmins to live. He established 108 Siva temples and 108 Devi temples and a few Shastha and Maha Vishnu temples. Still, once his ancestors complained that due to his killings, there were so many souls wandering about as they could not attain peace. He should do something to give them liberation. Parasurama meditated upon Vishnu to find a solution for this. Then he heard a celestial voice asking him to go to Vilwadri. At Vilwadri Parasurama realized the presence of Lord Siva and worshipped him. Parasurama asked the Lord how more he could liberate the souls. Lord Siva gave him an idol which he had been worshipping in Kailas and asked him to consecrate it at a temple in Thiruvilwamala. This idol can be seen in the eastern nada of the Vilwadrinatha temple. At this time Amalaka Maharshi, son of Kashyapa Maharshi started a severe penance in the same place at Thiruvilwamala. The Asuras were disturbed by the severe penance of Amalaka. As they tried to stop it by disturbing him, he opened his eyes and the fire that came out of the eyes destroyed all the Asuras and their ashes and bones formed a hillock which came to be known as Rakshasapara. Pleased with the penance of the Sage, Mahavishnu appeared before him with Sridevi, Bhoodevi and Ananthan. When asked what boon he wanted Amalakan only wanted Mahavishnu to stay there permanently. The idols now seen in the western nada as self-originated idols are believed to be those of the Lord, the Devis and Ananthan. There is a legend about the Punarjani cave at Thiruvilwamala. Though the distressed ancestors could get a darshan of Maha Vishnu they did not get liberation. As advised by Brahma, Parasurama requested Viswakarma to find a place where the Karmas could be given up. At Bhoothathaan Mala, Viswakarma found the presence of Brahma, Vishnu and Maheswara. He decided to make a cave there. Parasurama created Ganapathy theertha, Papanashini and Pathala Theertham. Indra made the Ambu theertham using his arrow. Airavatham, the elephant that served as the vehicle of Indra made Kombu theertham with his tusks. Parasurama brought the waters of the Ganga from the head of Paramasiva and filled all these ponds. When the souls entered the cave with all these ponds they attained liberation. When the Brahmins came to know about this cave, they requested Parasurama to allow them also to go in there as they wanted to get liberation. But Parauramaa allowed human beings to enter the cave only on the Ekadashi day of the Velutha paksha (bright lunar fortnight) in the month of Vrischikam. It is also believed that after the Kurukshetra war, the Pandavas came here to perform the rites for their departed ancestors. They also walked through the Punarjani and got rid of their sins. Now people who want to do this, undertake strict vratham (austerities) and stay the previous night in the temple and in the morning have darshan of the Lord. The entrance is big enough for a man to walk in but as he moves forward it becomes smaller and the only way to move forward is by crawling like reptiles. When they reach the top, they go to the Papanashini pond and take a bath. Though it is a difficult process because of the lack of space and the darkness, devotees with strong determination and devotion undertake to do it.