My son, Samuel had a stroke inutero and because of that he has limited use of his left side.  The brain damage causes him to have seizures as well.  He drags his left foot because the part of the brain that tells it to work has been damaged.  He has been fitted with a foot brace to help aide him in walking.  It is hinged and allows for some movement but restricts the unnatural dragging. 

SIN is very damaging, especially if it goes on for very long.  We get in to sinful habits and it destroys our outward testimony.  We are spiritually crippled and others can see our limp.  God, in His mercy and grace fits us with a brace.  It is to correct and teach us to do right!  To break bad habits.  The brace he "puts on us" might be physical infirmities or struggle in the area of finances.  He might move us or use others to speak the truth in love.  Whatever means He uses, the purpose is to straighten us out,  and to mold us in to His image.  At first it hurts, BUT God loves us and wants the very best for us.  Wear your brace until He says ..."OK, You've outgrown it".