I am a Christian and I do not believe that KI is there I know it is because the spirit is pushing you your body can be almost motionless and you can still move freely until you stop focusing on your accoplishment. myself I wear 370 pounds of Weighted clothes even to school I am 15 but I feel like I weigh a ton with the clothes on they are lined with led so they are heavily weighted down but I do Phisical Education with them on and it is easy because I am trying to accomplish on getting stronger and to raise my KI abillities. This has never been an issue before but now I take it seriously the thing is When your body sais stop you are going to fall over and pass out your Spirit because God is helping you in a way you are really helping yourself you stay active. A verse that Jesus said is this."God will help you but you must do your part as well"