Vishnu Sahasranama is a part of the great Hindu epic Mahabharata. It is one of the most powerful prayers of Lord Vishnu. It is known to bestow prominence, affluence, success, happiness, as well as wisdom. It takes away suffering and leads us to a path of salvation. Different Pujas are performed for different purposes. The main purpose of Vishnu Sahasranama chanting is believed to clear the mind and keep it calm. When you have a calm mind you are free from delusions and your mind does not cling to useless ideas. This leads to the process of self-realization.