Tattvas: Vishnu-tattva

                                                                  Q. Is it correct to call Brahma, Vishnu and Shiva as the Trinity? (knowing that Brahma came from Vishnu's navel and Shiva came from Sankarsana)
                                                                   
                                                                  Brahma, Vishnu and Shiva are qualitative incarnations of the Supreme Personality of Godhead, technically called `guna avataras'. They are in charge of the three qualities or modes of material nature viz. passion, goodness and ignorance. In that sense, it is right to consider them a Trinity -- in charge of creation, maintenance and destruction of the universe, respectively.

                                                                  Q. Is Arjuna a jiva tattva or Vishnu tattva? In Bhagavad Gita he seems to be considered as a jiva tattva. In Krishna book, it is described that he is an expansion of Nara Narayana rishi.

                                                                  In the Krishna book Srila Prabhupada mentions that Arjuna is considered to be an empowered (shakti-avesha) incarnation of Nara-Narayana; this means that Arjuna is a jiva who has been specially empowered by a one of the Lord's own potencies.

                                                                  Q. I was listening to Srila Prabhupada's lecture on BG 2.7-12 where he mentions about why God became many. Srila Prabhupada states that God became many individual beings to enjoy His pleasure potency. But we also learn that our material existence is due to our propensity to own, control and enjoy independent of the Lord. How to connect these two understandings?

                                                                  Q. What are the similarities and differences between Vishnu and Krishna.

                                                                  Vishnu is a plenary expansion of Krishna or Lord Narayana for the purpose of material creation. He is the same as Krishna in the sense that all plenary expansions are equally powerful as Krishna. In that sense, all the expansions such as Narayana in Vaikuntha are called 'Vishnu tattva' as opposed to the jiva-tattva or the miniscule living entities.

                                                                  Q. Why are worshipers of Krishna called Vaishnava, why not Krishnavas? Does this not indicate that we are actually worshippers of Vishnu?