The Sri Vishnu Sahasranam is found in the Mahabharata, Anusasana Parva, Section 149, verses 14 to 120, and authored by Srila Vyasadeva. Many devotees chant this everyday; if this is not convenient they perform this at least on their birthdays, on eclipse days and on the day which sun moves from one zodiac sign to another. The chanting of the Vishnu Sahasra Nama is said by sastras to ward off troubles that arise from the position of stars, planets, anger of rulers, incurable diseases and ruthless enemies. Moreover this purifies the mind there by letting one gain more inner poise for meditation, allows us greater understanding of the characteristics of the Lord, and invokes His energy into our life and consciousness.