Spiritual Happiness: Material Happiness vs. Spiritual Happiness

                                                                  Q: If the soul is part and parcel of Krsna (BG 15.7) and given Krsna is in the spiritual world and everyone in the spiritual world is infallible (BG 15.16), how is it that the soul has fallen into the material world in the first place?
                                                                   
                                                                   
                                                                  As Krishna's extended parts and parcels, the jiva has qualities like Krishna. One of those qualities is free will. Krishna has unlimited free will, whereas the jiva has tiny free will.
                                                                   
                                                                  When utilized properly, the jiva's free will is lovingly directed towards Krishna's service and seeking His happiness.
                                                                   

                                                                  Q. I have struggled through material life and achieved material success but I am still not happy. I also chant Hare Krishna mantra 4 rounds and sometimes 16 rounds. What is transcendental happiness? Is it possible to live happily without material worries?