The furnace is heated up. The gold is placed in the kettle and the fire is turned up until the gold begins to boil. The Goldsmith skims the dross that has come to the top then He looks within the gold to see if he can see His reflection. If He cannot, He turns the fire up higher. He skims the dross that comes to the top and takes a look again ... The purer the gold the more He can see His reflection.
Trust in your Lord and do not be surprised at the fiery trials that have come to test you. James 1:2-4 My brethren, count it all joy when you fall into various trials, knowing that the testing of your faith produces patience. But let patience have its perfect work, that you may be perfect and complete, lacking nothing.