You obviously recognize this as Salt, right?
Then he held up another bag with a substance that looked like this:
While everyone readily recognized the previous item as salt, it took quite some time for him to get the correct response to the question of what this second ingredient was. Did you recognize it also as salt?
The point was simply this, taken from Jesus' words to his disciples (and to us) that we are to be salt and light: the first item we recognize easily as salt, because it is in its refined form. The second bag of salt looked more like dirt. That's because unless salt is trampled and refined, and set apart from its natural environment, it looks like dirt! The Pastor reminded us that to be in this world and not of it, means that if all the salt were removed....meaning US as believers...all that would be left would be dirt! We have a responsibility to be the salt that brings out the God-flavors in this world (as the Message paraphrase puts it).
I appreciated the visual image and reminder. Let's all dedicate ourselves anew to BE SALT in this "dirty" world! We are here expressly for that purpose.