In fact Hari and Hara are not two but a single divine entity. That is the reason enlightened rishis said “Sivaya Vishnu Roopaya| Siva Roopaya Vishnuve| Sivasya Hrudayam Vishnuhu| Vishnooscha Hrudayam Sivayaha|”.
First of all we need to understand that Hari and Hara are the same. After we have confirmed that both Hari and Hara are the same, we will need to accept the fact that the incarnation of “Viswa” is an integral part of the Hari and Hara. This is fact of the Viswa Hara Hara and that is the reason for the birth of “Viswa Hari Hara Petam. Viswa Hari Hara Petam by perform acts of piety will help in the realization of needs of the earth, the heavens and nirvana. We’d request that you participate in the activities of this Petam and attain your goals.
If you think of it the above 3 Upsanas are path to nirvana. A human being has 3 kinds of needs that need to be fulfilled and that is the reason they incarnate as a human beings.