In John 9, Jesus heals a blind man by making mud and telling him to go and wash at a particular place (the Pool of Siloam). The man is obedient to these instructions and receives sight. Earlier in this story, the disciples asked why this man was blind (personal sin? sin of his parents?) and Jesus clearly states that it is to bring glory to the Father. I can only assume that this monumental miracle of giving him sight was the beginning of fulfillment of this plan.
Consider that the man washed exactly where Jesus told him to find relief. I don't think he had to convince him that he needed some cleansing here. Have you ever had dust in your eye? Imagine mud caked on your face. So the point being that instead of just grabbing from any source of comfort nearby (perhaps a jug of water at his feet, a cup of water held by a bystander, or even a bucket at a nearby well) this man went to a very specific place for help. So with us, Jesus sends us to a specific place for help in our suffering. He declares that he is the living water. Let's go to him and let God have the glory for cleaning out the grit in our lives.
Isaiah 58....
8 Then your light will break forth like the dawn,
and your healing will quickly appear;
then your righteousness will go before you,
and the glory of the LORD will be your rear guard.
you will cry for help, and he will say: Here am I.