Anushasana Parva 148.5

By always adoring with respect and devotion that immutable Being, by meditating on Him, by singing His praises, and bowing the head to Him, and by celebrating sacrifices to Him, indeed, by always praising Vishnu, who is without beginning and without end or destruction, who is the Supreme Lord of all the worlds, and who is the Master and Controller of the universe, one can succeed in getting over all sorrow.