The Bible Says in Revelations that God would rather we be Cold Or Hot ... If we are Luke Warm ... He will Spew Us Out of His Mouth !God Requires ALL OR NOTHING !!!When the bible talks about the Heart it is referring to the MIND ...He needs ALL OF YOU not just the leftovers . If your WHOLE MIND is Focused on GOD ...He has got your undivided attention ... He can work with that .