Brahma created his own Manasputra, Sanak, Sananda, Sanatkumar and Sanatan, and advised them to spread the people.
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But they were reluctant to indulge in worldly affairs, so they sought advice from Father Brahma to get rid of this worldly world. Father Brahma was then overwhelmed by the powerful menstrual cycle as he was busy with the work of creation, so he was unable to advise the Sankadi sages on theology. Then he meditated on Vishnu and called him for this deed. Sri Bhagwan then descended in the form of a swan and sent the Sankadi sages on the path of liberation by advising them on theology.
