It is necessary to be aware of our poverty because is only responsive to a broken and a contrite heart. The scripture says that "Godly sorrow works repentance." It is a sorrow that truly recognizes our sinfulness before God and our hopelessness without His mercy. Just accepting Christ doesn't seem to me to be truly sorrowful for your sins. My experience has taught me that my whole Christian life has required a certain amount of mourning. Mourning my inconsistencies, my stupidity, my failures, my thoughtless words that have hurt my wonderful wife, and a whole lot of other human frailties that I have. I mourn and pray that God will be merciful and forgive me and help me improve.