When life gets difficult, don't let satan tell you lies, don't let him tell you God doesn't love you and God doesn't care about what you are going through. Instead, know that you are in the very place of Christ Jesus's own sufferings. You are in the process of the renewal and cleansing of your mind and body.
Soon you will be testifying of God's goodness to you, even in the midst of your trials and tribulations! For thou, O God has proved us: thou hast tried us, as silver is tried. Psalm 66:10
The silversmith will take a piece of silver hold it up and over the fire to let it heat up. He must hold the silver in the middle of the fire where the flames are hottest so that all the impurities will be burned away.
He not only holds the holds the silver, he will sit in front of the fire the whole time the silver is being refined. He keeps his eyes fixed upon the silver and keeps his eyes on the silver the entire time. If the silver is left over the fire, even momentarily, it would be destroyed.
So how does the silversmith know when the silver is fully refined? When he can see his image in it. If you are feeling the heat of the fire, remember that God has His eye on you and He will keep watching you until He sees His image in you!