Go and sin no more

Belief in Jesus' Belief He Could Heal 

What did Jesus mean when He told those He healed that they should go and sin no more? This is something I have not yet worked out my full understanding. Does it mean that anyone who is sick is sick because they have sinned? 

I am ahead of myself here. This question seems to fall into the same category that caused many of His believers to fall away when Jesus said we can only approach God if He draws us to Him. There are many who are sheep not of Jesus' pasture. This is where I break with logic and resort to belief. This is, of course, is the only thing that pleases Him, belief not logic. Then also, how can we leap ahead if we do not surpass the idea that today's magic is tomorrow's logic?

There are many answers to which I do not even know the questions yet. This category seems to fall into that same type where Jesus said anyone can have whatever they want if they have enough belief for it. I have been holding this question in my mind's pocket for some time and have not yet made any satisfactory headway to my understanding. Time for the last resort? Hit the commentary's?