Sanctity of installation

From Mahavishnu the sacred idol has passed through the hands of Brahma, Suthapas, Kasyapa, Vasudeva, Sree Krishna and finally at the time of Krishna's ascension to Vaikunta, he instructed Udhava to entrust Brahaspathi (the Guru of Devas) with the task of taking the idol to a suitable place where people could worship it, so as to get salvation in Kaliyuga. A deluge had closed in on Dwaraka, but Guru salvaged the idol with the help of his prime disciple, Vayu. Guru and Vayu went around the world in search of an ideal place. They met Parasurama who lead them to a lush green spot with a beautiful lotus tank where they felt the presence of Lord Siva. Lord Siva along with Parvathy welcomed them and said , "This is the same spot you are looking for, here it was, I imparted the Rudrageetham to the Prechethas" .The idol was installed there. Siva with Parvathy left to the opposite bank, at Mammiyur. Siva permitted Guru and Vayu to perform the consecration rites and blessed them that henceforth this place would be known as GURUVAYUR (since the installation was done by Guru and Vayu).

Vishwakarma, the divine architect was requested to build a Temple , which he made in such a way that on the day of Vishu (Summer equinox), the sun himself makes his obeisance . His first rays on that day fall straight on the Lord's feet. The idol was installed in the solar month of Kumbha. (February - March). The ceremony was begun on the seventh asterism of Pooyam (Puozhya) and completed on the day of Anizham (Anuradha).

As the idol was once worshiped by the Lord Mahavishnu himself in Vaikunta, Guruvayur is considered to be " Bhooloka Vaikunta " - the heaven on earth.