Pure Devotion: Definition of Pure Devotion

                                                                  Q. What is the exact meaning of pure devotional service? How can we perform this without expectation?

                                                                  Srila Rupa Goswami gives the definition of pure devotional service in Bhakti Rasamrta Sindhu 1.1.11 (Nectar of devotion) as below:

                                                                  anyabhilasita-sunyam
                                                                  jnana-karmady-anavrtam
                                                                  anukulyena krsnanu-
                                                                  silanam bhaktir uttama