I know lighthouses are so often photographed and paired with Bible verses about Christ being our light, but it's with good reason. A lighthouse is used to warn ships of dangerous coast lines or reefs, unsafe waters, or other dangers. They also guide ships safely into harbor. Before all our fancy technology the lighthouse was perhaps the only guide on a dark night. I trust you see the parallel to Christ as our lighthouse. Like a ship ignoring a lighthouse, we run a terrible risk if we choose to ignore Christ's guidance or warnings.
Today many lighthouses are defunct, but thankfully Christ as our light can never be replaced or destroyed!