Long, long ago, there was an assembly of great sages on the bank of the river Sarasvatī, and they performed a great sacrifice of the name Satrayajña. In such assemblies, the great sages present usually discuss Vedic subject matters and philosophical topics, and in this particular meeting the following question was raised: The three predominating deities of this material world, namely, Lord Brahmā, Lord Viṣṇu and Lord Śiva, are directing all the affairs of the this cosmos, but who among them is the Supreme? After much discussion on this question, the great sage named Bhṛgu, who is the son of Lord Brahmā, was deputed to test all three predominating deities and report to the assembly as to who is the greatest.