Sanctity of the idol

The idol of Guruvayur temple is unique, since it is carved out of "Paathalanjana Sila", and is considered extremely sacred. This idol was once worshipped by Mahavishnu in Vaikunta. Vishnu handed it over to Brahma. King Suthapas and his wife who worshipped Bhrama for a child received this idol from Brahma. He advised them to 2 start worshipping the idol. Once Lord Vishnu appeared before them and blessed them that he himself will be born as their child in their three re-births in three different forms and in three different situations. Thus they got the good fortune to worship the same deity in all three rebirths. They gave birth to Prasnigarbhan who gave to the world the practice of Brahmacharya Vratha (Celibacy) . In their next birth, Suthapas and his wife were born as Kashyapa and Adithi . Their son in that birth was Vamana. The third rebirth was as Vasudeva and Devaki. The Lord Krishna was born as their eighth son. In the long run , the Lord Krishna himself installed this idol in Dwaraka and worshipped it.